Write two numbers that multiply to the value on top and add to the value on bottom.
-21
+

the reason why your question keeps getting deleted because this is not a school related question : )

i will answer your question though.

i never tried church's

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.