HURRY PLZ WILL GIVE BRAINIEST IF I CAN 4f+4+3d-6-3f

Isee the amount was $90.00 then reduced to $75.00 , what is the percent ?

Aprojectile is thrown upward so that its distance above the ground after t seconds is given by the function h(t) = -16t2 + 704t. after how many seconds does the projectile take to reach its maximum height?

Acollection of coins has value of 64 cents. there are two more nickels than dimes and three times as many pennies as dimes in this collection. how many of each kind of coin are in the collection?