9 15 *The denominator must be the same. 9 4 36
--- + ---- = --- × --- = ----
10 40 10 4 40
36 15 51 *Then simplify.
--- + --- = ----
40 40 40
51 11 * This the answer
--- = 1 ---
40 40
Answer:
0
Step-by-step explanation:
-y₁ + y₂\-x₁ + x₂ = m

I am joyous to assist you anytime.
Answer:
9 faces
21 edges
14 vertex
also iys called a heptagonal prism
Hope it helps :)