A small rocket is launched from a height of 6 feet off of the ground at an initial upward velocity of 64 feet per second. Its height is given by the equation h=-16t^2 +64t +6, where h is the height of the rocket in feet and t
is the time since liftoff in seconds. At what time is the rocket 54 feet in the air?
A. 1 second
B. 3 seconds
C. 1 second and 3 seconds
D. none of the above

d) 48

step-by-step explanation:

16,32,48,64,80,96,112,128,144,160,176,192,208,224,240,256,272,288,304,320,336

the argument of alfred t. mahan, henry cabot lodge, and albert j. beveridge was the economically and mass production the the americans could not consume themselves. this led expansion to sell to other foreign nations for profits.

step-by-step explanation:

this is my explanation