Answer:
10v^2
Step-by-step explanation:
(I'm assuming the 2's are all exponents)
3v^2 - 2v^2 + 9v^2 <- think of it as 3 - 2 + 9 = 10, then add the rest back on
10v^2
300
3 * 4 = 12
12* 25 = 300
Hope this helps! :D
Answer:
X and y are supplementary.
Step-by-step explanation: