Known: Triangle + circle = 12 circle + Pentagram = 8 triangle + circle + Pentagram = 21 triangle. Circle. How many Pentagram?

Formula 1 Plus Formula 2 minus formula 3 = circle, get - 1, triangle get 13, five pointed star get 9

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1. Circle plus triangle plus five pointed star three times in a row. Equal to 5.6.7
2. Five pointed star minus triangle is equal to 80, five pointed star plus five pointed star minus triangle is equal to 200, five pointed star and triangle represent several points respectively
3. Circle plus 6 equals 10, triangle plus circle equals 9, Pentagon minus triangle equals 9, how many five pointed stars are there? Circle, triangle and Pentagram are all within 10
4. 4 times triangle plus 7 times Pentagram = how many times Pentagram Triangle = 5 times Triangle = 5 times five pointed star
5. How many triangles does a pentagram have As shown in the figure, there are several triangles
6. In the square divided by triangle equals 198, the remainder is 76, and the triangle is the smallest
7. Square divided by 5 is equal to 19 / 18 of triangle plus triangle to find the value of square and triangle Square divided by 5 is equal to 19 / 18 of triangle plus triangle to find the value of square and triangle A circle divided by six equals a star, and a circle minus a star equals 81 / 10
8. If the circle is divided by triangle = 12 and 15, then circle + triangle = 353, then circle = (), triangle = () The store brought in 2500 kg of fruit. After 75 baskets of fruit were sold, there were 125 kg left. How many baskets of apples were brought in? It costs 24 yuan to buy 3kg apples and 4kg oranges, and 25 yuan to buy 3kg oranges and 4kg apples. How much is a kilogram of apples and a kilogram of oranges?
9. (triangle divided by triangle) times (square square) + (circle plus circle) = () (a is not equal to 0) Triangle is not equal to 0
10. Enlarge the triangle ABC by 2:1 and draw the enlarged figure,
11. How much is a triangle multiplied by a five pointed star
12. Ask: one triangle equals four five pointed stars, one five pointed star equals two boxes, what to fill in the box
13. A triangle divided by a five pointed star is equal to more than 4 of 16 A five pointed star divided by a triangle equals 16.5 ▲=（） ★=（）
14. Known triangle divided by five pointed star equals square, square multiplied by five pointed star plus triangle equals 150, what is triangle equal to
15. Square plus triangle equals 12; triangle times circle equals 24; circle times square equals 18 fast
16. Triangle plus square plus two circles is 400,
17. Circle + square is equal to 41, 3 corners + square = 57, triangle + circle + = 44, find circle. What are the squares and triangles
18. The degree of the second angle of a triangle is 4 times of that of the first angle, while the degree of the third angle is 2 / 5 more than the sum of the degrees of the first and second angles
19. The degree of the second angle of a triangle is four times that of the first angle, while the degree of the third angle is 5 / 2 more than the sum of the degrees of the first and second angles. How many are the three angles
20. Triangle = circle + 2, square = 2 triangles, circle = square - 30, how many triangles, circles and squares are there