Hal spent half the money in his account and then deposited $60. He now has $325. How much money did Hal have in the beginning

What is the value of x in the equation 2(x-4) = 4(2x + 1)?

Find the area of a parallelogram with base 15 yards and height 21 2/3

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)