Angel is 8 years old and Alex is 30 years old x-y=30
20x-28+12=16x+24 (i distributed the 4 to get this)
20x-16=16x+24 (added -28 & 12)
4x=40 (Subtracted 16x from both sides and added 16 to both sides)
(divide by 4 on both sides)
x=10
Formula for finding the area of a rectangle: length x width
Formula for finding the volume of a rectangular prism: V = lwh
