Evalute: 7.48 + (-8.245)

7.48−8.245

=7.48+−8.245

=−0.765

-0.765

Step-by-step explanation:

I hope this helps!

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.

the answer is 8/21

hope this