Please help me to solve all this question pleaseee​

78.59 is the mean

step-by-step explanation:

b. 1.25 hr

step-by-step explanation:

if you have a constant speed of 60 mph, then you have a ratio between 60 mi. to 1 hr. dividing both sides by 60 we get the ratio

1 mi. to

then mult. both sides by 75 we get the ratio

75 mi. to

simplifying we get

75 mi. to

or 1.25 hr.

answer: 8

step-by-step explanation:

wait this depends wether emily and zach how they are thinking.

yes they are the same.