Serena parachutes from a plane at a height of 20,000 ft above sea level. several minutes later she notes from an instrument on her wrist that she had dropped 15,000 ft. how far above sea level is she now?
a)–15,000
b)–5000
c)5000
d)10,000

it could be 1,3 and more others to create a cylinder.

step-by-step explanation:

42

step-by-step explanation:

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.