An aquarium holds 6 1/4 gallons of water. the water level has dropped to 4/5 of this amount. how much water should be added to fill this aquarium?

Idon’t understand this.. will someone ? will mark brainliest along with 20 points.

Which of the following is true for the relation f(x)=2x^2+1

Type the correct answer in each box. spell all words correctly. a sequence of transformations maps ∆abc onto ∆a″b″c″. the type of transformation that maps ∆abc onto ∆a′b′c′ is a . when ∆a′b′c′ is reflected across the line x = -2 to form ∆a″b″c″, vertex of ∆a″b″c″ will have the same coordinates as b′.