Anybody i'm very bad at math.

a model rocket is launched with an initial upward velocity of 65 m/s. the rocket's height h (in meters) after t seconds is given by the following.
h= 65t - 5t^2
find all values of t for which the rocket's height is 25 meters.
round your answer(s) to the nearest hundredth.

7.(03.01 lc)which set represents the range of the function shown? {(-1, 5), (2,8), (5, 3), 13, -4)} (5 points){-1, 2, 5, 13){(5, -1), (8, 2), (3,5), (-4, 13)){-4, 3, 5, 8}{-4, -1, 2, 3, 5, 5, 8, 13}

Ineed to know the answer right now! !

The u-drive rent-a-truck company plans to spend $13 million on 320 new vehicles. each commercial van will cost $25 comma 000, each small truck $50 comma 000, and each large truck  $80 comma 000. past experience shows that they need twice as many vans as small trucks. how many of each type of vehicle can they buy?