Which of the following are equivalent to: x^6•x^4

Select ALL that apply:

A) x^10
B) x^12•x^12
C) x^7•x^3
D) x^8•x^3
E) x^24
F) x^8•x^2

SOMEONE, PLEASE HELP ME!

Is every rectangle is a parallelogram? true false

Aball is thrown from a height of 139 feet with an initial downward velocity of 15 ft/s. the ball's height h (in feet) after t seconds is given by the following. h=139-15t-16t^2 how long after the ball is thrown does it hit the ground? round your answer(s) to the nearest hundredth. (if there is more than one answer, use the "or" button.) t =

Graph the linear function using the slooe and y intercept