Can someone please answer these three questions? I’m in desperate need of them. Please

sorry babygirl ion got the answer but u wanna new quarantine friend? what's yo #?

the answer would be 484

step-by-step explanation:

just multiply 0.484 times 1,000 (formula)

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.