33square2 i think that is what it is
7x+5+8x
combine 7x and 8x to get 15x+5
m = 7.5x+2.5 would be the exact middle, but without knowing x I can't help much more. My school's work usually tells me x.
Answer: 
Step-by-step explanation:
Given
The side of the triangle are 
Suppose the third side is 
Also, the sum of the two sides of the triangle is always greater than the third

Similarly,

Also,

From (i) and (ii) we get

Answer: y=1/2x-6
Step-by-step explanation: