At last year's company picnic, 25 pounds of ground beef were needed to make 100 hamburgers. how many pounds of ground beef will be needed this year if 120 hamburgers are to be made?

a. 30 lb b. 45 lb c. 50 lb d. 55 lb

answer: what do you mean

correct choice is b

step-by-step explanation:

when you calculate the average rate of change of a function, you are finding the slope of the secant line between the two points. for the function the average rate of change from point to point can be calculated as

to find the average rate of change from day 2 to day 10, note that at day 2, 8 houses were sold, so a(2,8) and at day 10, 2 houses were sold, so b(10,2). thus,