Simplify: (3x2 + 4x - 3) - (4x2 - 3x + 2)

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)

Solve the following pair of equations for x and y: ax/b_ by /a= a +b; ax - by = 2ab

Hurry the figure shows the front side of a metal desk in the shape of a trapezoid. what is the area of this trapezoid? 10 ft²16 ft²32 ft²61 ft²