How much did she spend this month?

Average acceleration: i have no idea how to do this.

Me asap! what is the slope of this line? enter your answer in the box.

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)