I got b have a good day :)
Answer:
15-9=
6 ok I don't know if it's correct
Answer:
a = z/mb
Step-by-step explanation:
Given:

To solve for a, divide both sides by the variables mb to isolate a-term.

Simplify the expression and we finally have solved for a-term.

Therefore, the answer to this question is a = z/mb.
Please let me know if you have any questions regarding my answer or explanation!
Answer:
Step-by-step explanation:
Hence, the surface area of a triangular pyramid is 140 square units.