Answer:

Step-by-step explanation:
1) if to re-write the given equation into slope-interception form, then:

the slope of the given line is 5/2;
2) according to the rule of perpendicular, the required slope should be:
s*(5/2)=-1;
3) if to solve this equation (s*5/2=-1), then s=-2/5 or -0.4.
-6/7p+1/7 um Idk what you wanted me to do but I added -4/7p with -2/7p
Answer:
The surface area of the prism is 108 square in.
It's hard to help if you can't provide everything with the question