Answer:
n + y
Step-by-step explanation:
a² - b² = (a +b)(a - b)
÷
{ (n + y) in the denominator and numerator will be cancelled ;
(n - y) in the denominator and numerator will be cancelled
= n + y
Answer:

Step-by-step explanation:
use
a^2 +b^2=c^2
Answer:
$9.9
Step-by-step explanation:
Answer:
$1,650
Step-by-step explanation:
First, we need to find how much she paid the whole year. 27,700-x=7900. If we subtract 7900 from each side and add x to each side, we get 19,800=x. Therefore, she paid $19,800 in rent the whole year. Since there are 12 months in a year, and each month she paid the same, she paid $1,650 in rent each year, for 19800/12=1650