Answer:
ok so lets find what percentage 630 is of 3050
630/3050=0.20655737704
so about 20.7%
Hope This Helps!!!
You would multiply all of the numbers to get your answer so it would be 4*5*6*8 which would get you 960.
18 / 1 = x / 15......18 miles to 1 gallon = x miles to 15 gallon
cross multiply
(1)(x) = (18)(15)
x = 270 miles
If she shot her average she would make 30 out of 50 shots (AKA 60%)
She could use the index cards to record each shot, recording 5 results on each one of the 10 cards
I understand this answer is really late for you but I hope you can still use it or someone else can use it if they have the same assignment