6 obreros realizan un trabajo en 45 horas, ¿Cuántos obreros necesitamos para realizar el mismo trabajo en 20 horas?

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.

If x is 6, then 7x= a. 13 b. 42 c. 42x d. 76

I’m on question 7 it says a covered water tank is in the shape of a cylinder the tank has a 28 inch diameter and a height of 66 inches to the nearest square inch what is the surface area of the water tank