The answer is 31
29 - 13 is 16
16 + 15 is 31
It should be 2.33333.... wide. Hope it help!
Rectangle on the top: 3a^4b^2
Second: 35x^6y^8z^2
Square: 108x^8y^2
If you want it to be y=mx+b form then the equations should look like this: y=x+5 and y=-1/3x+1.
The volume would be 5 because in order to find volume you need to divide mass over density. V=m/d
