A cross-trainer wants to burn 380 Calories during 40 minutes of exercise. He burns about 8 Calories per minute inline
skating and 12 Calories per minute swimming. How long should he spend doing each activity?

plz answer quickly I need this asap tysmm

F(x)=x/2-2 and g(x)=2x^2+x-3 find (f+g)(x)

Suppose that the price p, in dollars, and the number of sales, x, of a certain item follow the equation 4 p plus 4 x plus 2 pxequals56. suppose also that p and x are both functions of time, measured in days. find the rate at which x is changing when xequals2, pequals6, and startfraction dp over dt endfraction equals1.5.

Which of the following graphs could represent a cubic function?