Because anything multiplied by one is that number. If you have 3/4 one time, then it is 3/4.
14 is 70% of 20.
They played 20 games

First let

, so that

to write the integral as

Now recall that

, so substituting

should do the trick. The integral then becomes
Answer: 19.5
Step-by-step explanation:
Use Pythagorean theorem to find the diagonal as it is a right triangle.
Micheal > pirate > 83
Christopher > Spiderman > 55
Victoria > cheerleader > 47
Courtney > mermaid > 88
Nicole > Spidergirl > 74