Write a system of equations to describe the situation below, solve using any method, and fill in the blanks. Eric and Jacob just had business cards made. Eric's printing company charged a one-time setup fee of $12 and then $16 per box of cards. Jacob, meanwhile, ordered his online. They cost $15 per box. There was no setup fee, but he had to pay $13 to have his order shipped to his house. By coincidence, Eric and Jacob ended up spending the same amount on their business cards. How much did each spend? How many boxes did each buy?​

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.

simple 80 pieces in 1 sercing so 80*47=3760+20=3780