A fraction bar. The top bar is labeled 1. 4 bars underneath the bar are labeled one-fourth. 5 bars underneath the 4 bars are labeled one-fifth. 20 bars underneath the 5 bars are labeled StartFraction 1 Over 20 EndFraction. Divide: Three-fourths divided by two-fifths
2 and one-fifth
3 and three-fourths
2 and three-fifths
1 and StartFraction 7 Over 8 EndFraction

Having a hard time understanding this question (see attachment).

Type the correct answer in the box. use numerals instead of words. if necessary, use / for the fraction bar.a city water tank holds 20 gallons of water. a technician empties 25% of the tank. how many more gallons of water must be removed from thetank so that it has 5 of the water that it started with: the technician must removemore gallons of water for the tank to have 5 of the water that it started with.

Yvaries inversely as x. y =12 when x=5. find y when x=4