4x-3(x + 5) > 7-4(x + 6)
can someone me? i don't understand how i'm supposed to go about this problem and how i'm supposed to solve it.

Suppose that the price p (in dollars) and the weekly sales x (in thousands of units) of a certain commodity satisfy the demand equation 4p cubedplusx squaredequals38 comma 400. determine the rate at which sales are changing at a time when xequals80, pequals20, and the price is falling at the rate of $.20 per week.

Evan went to the park and saw for animals each animal was either a duck or dog if he saw a total of 14 legs how many of each animal did he see

What is the value of x? enter your answer in the box. x =