Jim’s allowance is $1.20 per week. stan’s is 25¢ per day. how long will they have to
save, if they save both their allowances together, before they can get a model car set that
costs $23.60?

First, find out how much stan gets per week. 

.25 x 7 =1.75

now how much they get together

1.75 + 1.20 = 2.95

and then the final step

23.60 / 2.95 = 8

it'll take 8 weeks for them to buy the model car set

9/12 is the answer because 3/4 times 3 each is 9/12

Ithink is a. true, but not sure