There are 16 ounces in one pint. You multiply 16 by three, and you get 48 fluid ounces.
Price of boots is represented as x, price of tennis shoes is represented as y.
x-y=44.38
x+y=196.12
Isolate x. (Or y, if you wanted to)
x=y+44.38
x=196.12-y
Set them equal to each other.
y+44.38=196.12-y
Solve for y. Then plug it in to either of the two original equations to find x.
x=120.24
y=75.86
Note: This is assuming that the boots are more expensive than the tennis shoes. If the tennis shoes are more expensive than the boots, then the prices would be switched. I didn't find this clear in your question.
I'd say 1, 3 , and 4 (and triangle 2 looks similar to those 3)
Answer:
find how many dishes she can wash in 1 minute:
14 divided by 5
2.8/per min
Find 8-minutes:
8 times 2.8
22.4 dishes