A number plus 50% of it is 13.5. What's 80% of the number

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• 1. -5 - (- 13) =? How much is minus five minus thirteen? Why?
• 2. How much is five thirds plus one ninth?
• 3. What is 1 in 18 to the power of 0 What is the 0 power of (- 100)
• 4. 25 points 12 equals (): 50 = 18: () = ()%
• 5. 12 out of 25 = how much: 50 = 18:1 how much = how much%
• 6. What's six out of thirty equal to five out of ten divided by 20 equal to 18 out of ten
• 7. What's 30 times 5 / 18
• 8. How much is [5 / 6 - {5 / 14-2 / 7] × 7 / 18
• 9. Calculation of rational numbers 3,7, - 5, - 13.24
• 10. Four rational numbers 3,7, - 7, - 3 are operated by 24 points Give the formula
• 11. Hello, I'd like to ask you: what number and minus five out of twelve equals minus one?
• 12. What number and minus five out of twelve equals minus one
• 13. What number and the sum of minus five twelfth equals one
• 14. What number and the sum of minus 5 / 12 are equal to - 1
• 15. 5 / 12 of a number is equal to 2 times of 5 / 6
• 16. Use - 2,2,3,6 to make the result equal to 24
• 17. (2 √ 24 - √ 18) △ 3 + 2 √ 3 / 2
• 18. ）Equal to 16 / 3 of () equal to 2 / 3 equal to () divided by 18 equal to 24 divided by ()
• 19. Find [60,72,84] (60,72,84) [18.12.24] (18.12.24)
• 20. For a fraction, if the numerator adds 8 and the denominator subtracts 10, its simplified value is 34. If the numerator adds 18 and the denominator adds 32, its simplified value is 12. What is this fraction______ ．