Which of the following would be equivalent to 9^2 ⋅ 9^6? 9 to the 8th power over 9 to the 7th power

92 ⋅ 97

9 to the 10th power over 9 to the 2nd power

90

Two lines parallel to a third line are parallel to each other. always sometimes or never

Write a function for a rotation 90 degrees counter clockwise about the origin, point 0

After t seconds, a ball tossed in the air from the ground level reaches a height of h feet given by the equation h = 144t-16t^2. after how many seconds will the ball hit the ground before rebounding?