Wht is (4x + 15)
(its angles btw)

step-by-step explanation:

6.48/4 4 goes into 6.48 1.62 times

answer: 414,377,008

step-by-step explanation:

just multiply it

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.