7/8 of an hour is 52.5 minutes. 3/10 of 52.5 minutes is 15.75 minutes. They spent 15.75 minutes warming up and cooling down.
C, adding the rest of this sentence because it needs to be longer
Answer:
Sorry I cant help But I think that well I dont know but if you have any other questions i can help you with I can.
Step-by-step explanation:
Fraction of his error= 87.50/ $125
=0.7
Percentage= 0.7 * 100
= 70%