Vincent and Irma agreed to babysit their sister for 3 hours while their parents were at a play. Vincent went first, while Irma did her homework. Then Irma watched her sister so Vincent could do his. In the end, Vincent and Irma watched their sister for the same amount of time. How long did each sibling watch their sister?

the answer is a

step-by-step explanation:

i think its a and d

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.