Find the value of each expression. a. 1/4 * (-12)
b. -1/3 * 39
c. -4/5 * (-75)
d. -2/5 * (-3/4)
e. 8/3 * -42

btw * means times :)

Kristen is wrapping presents for the holidays. she has a box that measures 4 ft. x 2 ft. x 2 ft. how many square feet of wrapping paper does she need to cover the box without overlapping?