Laura plans to paint the 8-foot-high rectangular walls
of her room, and before she buys paint she needs to
know the area of the wall surface to be painted. two
walls are 10 feet wide, and the other 2 walls are 15 feet
wide. the combined area of the 1 window and the
1 door in her room is 60 square feet. what is the area,
in square feet, of the wall surface laura plans to paint?

step-by-step explanation:

a.) list the factors of 40.

1/2/4/5/8/10/20/40

b.) list the factors of 40 that represent the number of cans that could be on each shelf.

5

c.) how many different arrangements of cans are possible?

just one because if you put more on one shelf you will go way over 40 and the cabinet will probably break.

d.) what are the possible arrangements of the cans?

put 5 cans on each self to reach 40 cans in total.

e.) which arrangement uses all the shelves?

5 because you can put 5 cans on each shelf, and since there are 8 shelfs you are equally going to get 40 cans.