Which is the MOST reasonable estimate for "two times the square root of ten and three-fourths"

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.

Percent increase and decrease. original number: 45 new number: 18

Yuto solved the equation below. what is the solution to yuto’s equation?