3.) In the early afternoon, a tree casts a shadow that is 2 feet long. A 4.2 foot-tall boy standing next to the tree casts a shadow that is 0.7 feet long. How tall is the tree?

The width of a rectangle is 20 units. can the perimeter p of the rectangle be 64 units when its length x is 11 units? no, because p = 2x + 2(20) no, because p ≠ 2x + 2(20) yes, because p ≠ 2x + 2(20) yes, because p = 2x + 2(20)