Are they asking for the surface area?
Answer: Id say b
Step-by-step explanation: a would be too high and a bit too detailed. Whereas c and d will be inaccurate.
7x - 5 = 30
* add 5 to both sides
7x = 30 + 5
7x = 35
* divided both sides by 7
(7/7)x = 35/7
<u><em>x = 5</em></u>
Hey!
1. scalene
2. isosoles
7. scalene
8. scalene
5. isosoles
6. isosoles
7. scalene
8. equilateral
