Jenna earns $7.75 per hour working at the mall. if jenna worked hours 22 1/5  last week, how much did she earn before taxes were taken out?

How do i start to solve? would appreciate a walk-thru! a bird sitting 16ft above the ground in an apple tree dislodges an apple. after how many seconds does the apple land on the ground? (assuming that no branches will interfere with it's fall)

The linear combination method is applied to a system of equations as shown. 4(.25x + .5y = 3.75) → x + 2y = 15 (4x – 8y = 12) → x – 2y = 3 2x = 18 what is the solution of the system of equations? (1,2) (3,9) (5,5) (9,3)

Prove that the value of the expression 7^8–7^7+7^6 is divisible by 43.