Please Answer. No Trolls, No promos, unless you are going to answer my question. Question is in the photo. Subject is Mathematics.

What is the exact volume of the cylinder? 16in going into the middle of the top of the cylinder and 40in in height a) 25,600(pi)3 b)10,240(pi)3 c)1280(pi)3 d)640(pi)3

Name the quadrilaterals that have four equal sides.

Need to increase the numbers of customers i talk to daily by 20% how many customers do i need to talk to if i talk to a average of 8 customers per hour during an 8 hour shift