math p4

how was it?
some answers i remember:
32 percent, 360 kgs, 270, 1.25 and then 140 bags
then there was the volume as 432 for the pyramiund, and surface rea was 403.6
then the last question was 88.9 perimeter, and 9.01 as height
for turning points, (0,10) minimum point and (3,37) was teh maximum point (it was -12x+18 after second differentiaion)
then trigo, 15.0, 15.65, 13.9, and r=4.40
for the compound interest thingy, first r = 5.00, then r=3.99 and then 9 years
for fucntions i remmeber first one was -7/2, some x =5, and then it was x =4
for graph the line to be made was y=2