2023 AP Calculus AB Free Response Questions Louis A. Talman, Ph.D. Emeritus Professor of Mathematics Metropolitan State University of Denver May 16, 2023 1. (a) The integral Z 135 60 f(t)dtgives, in gallons, the amount of gas pumped into the gas tank during the time interval 60 t 135. This amount is given by Z 135 60 f(t)dt˘f(90) 30 + f(120 ...