Answer:
20
Step-by-step explanation:
Because it is a square table, that means all the sides are even. And to find the area, we do Height * Base. But again, because they're even, we would just need to find 2 numbers that multiply to be 400. And that number, is 20. 20 * 20 = 400. So the length of one side is 20.
Answer:
{-4 = 7, 5 = 5} = {False, True}
Step-by-step explanation:
Tonis donation is 3 times longer (6 x 3 = 18)
14-8+5-2+6-11 is 4, therefore, the answer is A(4)