8. [-/2 Points] DETAILS LARCALCET7 4.7.030. MY NOTES ASK YOUR TEACHER A cylindrical package to be sent by a postal service can have a maximum combined length and girth (perimeter of a cross section) of 129 inches. Find the dimensions of the package of maximum volume that can be sent. (The cross section is circular.) radius length 9. [-/2 Points] DETAILS LARCALCET7 4.7.017. MY NOTES ASK YOUR TEACHER A rectangular poster is to contain 648 square inches of print. The margins at the top and bottom of the poster are to be 2 inches, and the margins on the left and right are to be 1 inch. What should the dimensions of the poster be so that the least amount of poster is used n (smaller value) in (larger value) 10. [-/2 Points] DETAILS LARCALCET7 4.7.029. MY NOTES ASK YOUR TEACHER A rectangular package to be sent by a postal service can have a maximum combined length and girth (perimeter of a cross section) of 84 inches (see figure). Find the dimensions of the package of maximum volume that can be sent. (Assume the cross section is square. X =