Maggie's brother is 3 years younger than twice her age. the sum of their ages is 24. how old is maggie?

The composite figure is made up of a parallelogram and a rectangle. find the area. a. 76 sq. units b. 48 sq. units c. 124 sq. units d. 28 sq. units

Simplify. (-2)^-3 a. -8 b. -1/8 c. 1/8 d. 8

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)