CAN SOMEONE PLS HELP WITH THIS IF ITS RIGHT U GTE BRAINLIEST ASAP!!

Ascuba diver was 80 feet below sea level and swam up at a rate of 4 feet per minute. the two solutions show how long it took the scuba diver to reach an elevation of 20 feet below sea level. lydia and max used the methods shown below to find the time it took the diver to reach the new elevation.

An airplane travels at an unknown elevation before it descends 3 miles to an elevation of 15 miles. find the elevation of the plane before its descen.

Micheal is 4 times as old as brandon and is also 27 years older than brandon. how old is micheal