Idon’t know how to do this. can someone ?

To Find the midpoint, add the 2 X coordinates together and divide by 2 and then do the same with the Y coordinates:

X: 3+7 = 10 / 2 = 5

Y = -5 + 9 = 4 / 2 = 2

The midpoint is (5,2)

answer:  

123455421

step-by-step explanation: easy

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.