AP Calculus Free-Response Questions

At what time t will the volume of the sphere be 27 times its volume at t = 0? 1993 Scientific Calculators required. 157. Let f be the function given by f(x)= x3 -5x2 + 3x + k, where k is a constant. ... 2002 Graphing Calculator on 1st 3 questions only. 211. Let f and g … ................
................