I need someone to explain this please

answer: a.

step-by-step explanation: the answer is a. because, you need to converge the fractions to find a solution.

$6.42

step-by-step explanation:

d. 145*2 is 290 than the total angle is 360 then minus 290 then divide by two

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.