exam Maths Puzzle Numerical Ability

I am having trouble setting these problems up into equations.

Given
S=Supply (in thousands) S=.09x^2-.45x+3.5
D=Demand (in thousands) D=15-.5x
X=price

What should the pric

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exam Other Question

Please help me with this word problem, please walk me through the steps to solve this problem.

Suppose the demand and price for the HBO cable channel are related by p = .5q + 3 Hi, I'm not sure if this is in the right category. I need to simplify the following: Thank you for your assistance!

1. 8(x + 4) - (x - 5)

2. 28((1/4)z + (1/7))

3. 3