45/100 x 57 + 45 = $70.65
Y=1/2x +0. You add the 2x to the other side, and then divide everything by 4 to have only 1y.
Answer: The 3 is the numerator.
The top number is always the numerator.
You can exploit the difference-of-squares identity,
<em>a</em>² - <em>b</em>² = (<em>a</em> - <em>b</em>) (<em>a</em> + <em>b</em>)
Then
101.5² - 100.5² = (101.5 - 100.5) * (101.5 + 100.5)
101.5² - 100.5² = 1 * 202
101.5² - 100.5² = 202
Answer:
s
Step-by-step explanation:
