2 answers:
It would be a c b f i'm frist i get brainlist.
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It would simply take you 20 hours. 90/4= 22.5. 22.5/15= 2.5
All real numbers or is it multiple choice
Idk what the answers is sorry
Answer:
Sooo it can complete 120 laps in 1 hour.
Set up a proportion
3/7/12 = 1/x
3/7x = 12
x = 28
28 - 12 = 16
16 are left