Multiply 15 ft by 1 ft/12in and 2.54cm and 1 in

Peaches cost $4.29 per pound. find the cost of two and a quarter pounds of peaches.

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)

Aadc is formed by reflecting aabc across line segment ac, as shown in the figure. if the length of ac is 4 units, the area of aadc is square units.