1. Given the cost function TC = 30000 + 15q-3q (the square of Q) + Q (the third power of Q), q is the output quantity. 1) when the output is 500 units, what is the TFC? 2) when the output is 30, what is the AVC? 2. Known investment function I = 300-100r, savings function s = - 200 + 0.2y, money demand function L = 0.4y-50r, total supply M = 250, total price level P = 1. Find is and LM Curve equation

1. Given the cost function TC = 30000 + 15q-3q (the square of Q) + Q (the third power of Q), q is the output quantity. 1) when the output is 500 units, what is the TFC? 2) when the output is 30, what is the AVC? 2. Known investment function I = 300-100r, savings function s = - 200 + 0.2y, money demand function L = 0.4y-50r, total supply M = 250, total price level P = 1. Find is and LM Curve equation

1) when q = 500, TFC = 30000;
2) When q = 30, AVC = (TC TFC) / Q = 15-3 * 30 + 30 * 30 = 825

Lin Lin does a multiplication problem. He takes one of the factors 21 as 12, and the result is 216 less than the correct product. What is the correct product?

A: the correct product is 504

For a two digit number, the sum of its ten digit number and one digit number is 13. If the position of two digits is exchanged, the two digit number obtained is 27 less than the original number. How to find the two digit number

Let X be tens of tens of tens, then (13-x) be tens of tens of tens of tens of tens of tens of tens of tens of tens of tens of tens of tens of tens of tens of tens of tens of tens of tens of tens of tens of tens of tens of tens of tens of tens of tens of tens
We get 10 * x + (13-x) = 10 * (13-x) + X + 27
9x+13=157-9x
18x=144
x=8
The number on the single digit is 5
So this double-digit number is 85
That's all