-7(x+y=525)-7
3x+7y=2775
-7x-7y=-3675
3x+7y=2775
-4x=-900
X=-900/-4
X=225
Answer is c
65 and 2 are wsys too your welcome
Answer: I believe the answer would be 1/9 ?
The answer is A,

. This is because when plugging in -2 for x, the expression will look like this:

. To make the exponent positive, you have to flip it into a fraction. Then it will be

. Lastly, you simplify the denominator into 81.
The answer is -21/3, -1.4, 21%, 4/5,0.75.
You have to convert them to the same unit.