An number multiplied by zero is zero. This is because you are essentially saying that 1,000 0 times is zero.
Only one. These problems always have one solution unless something has changed.
The perimeter of an object is found by adding all of the sides. The sides of his frame would be 2 ft, 2 ft, 1.5 ft (18 inches / 12 inches per foot = 1.5 feet), 1.5 feet. Adding these together we get a total length of 7 feet. However, he may want to use a slightly longer board to account for any errors!
