The two in the middle. B and C, I guess.
Answer:
subtraction
Step-by-step explanation:
just did it and got it right
Answer:
h=69
Step-by-step explanation:
H=VM2 +69=Y.......
Answer:
y=3x
Step-by-step explanation:
y=mx+b, m is slope, b is y-intercept
Answer:
Infinite solutions
Step-by-step explanation:
Simplify both sides, subtract 9x, and add 21x to both sides and you will get 0 = 0 so there is infinite solutions.