Hello of the Nation of Alabama! I have a dream, I have a dream that African Americans should work in the cotton field with hard labor and die in the processes, I have a dream

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.

The sum of two numbers is 12 and their difference is 18 what are the two numbers

Given f(x)= 9x+1 and g(x)=x^3, choose the expression (f*g)(x)