(20 points) a wedding cake was made with three layers the bottom layer: b = 64 inches2 h = 2 inches the middle layer b= 36 inches2 h = 2 inches the top layer : b= 16 inches2 h = 2 inches what is the total volume of the cake? (20 points)

Barbara's piano instructors house is 7 1/8 miles from her house. after biking for 1 3/4 miles she stops to rest how much longer does she need to bike to reach her instructor's house

Koji is installing a rectangular window in an office building. the window is 823 feet wide and 534 feet high. the formula for the area of a rectangle is a=bh. what is the area of the window? enter your answer as a mixed number in simplest form in the box. $$ ft2

Asap! i'm not good math and i'm lost.