Answer:
-a + 7b
Step-by-step explanation:
This problem is asking you to simplify the equation.
In order to do this, we will combine like terms (like terms are terms that share the same variable and/or exponent).
So we will combine 3a and -4a to get -1a or just -a, and now we'll combine 5b and 2b to get 7b.
So all together we have -a + 7b.
Hope this helps you :)
I’m not quite sure I understand but if your saying that -9 =x and -7 =y then the answer would be -59 so the equation wouldn’t be true I hoped I helped :)
In order to find the discount price we would need to find 25% of $223.95.
Step 1: 
. Which is 55.9875 ( 25% of 223.95)
Step 2: Do 
, which is your answer 167.9625. If you round it to the nearest cent, it would be $167.96.
Answer:
mean=median
Step-by-step explanation:
mean is 4
median is 4
mode is 4
mean=median
