Answer:
The question mark is just there in place of a number it is telling you that it does not have a number there and you have to solve for it. I hope this helps if not i can explain it more
Step-by-step explanation:
I’m pretty sutures it’s 0.01396 but I might be wrong
The GCF of this would be...
27x + 9y
9 ( 3x + y)
To check... Multiple the back
9 ( 3x + y)
27x + 9y
B. The equation can become −2(4x − 1) = 12 by applying the addition property of equality because we have: <span>−2(4x − 1) − 7 = 5 / + 7 <=> -2(4x-1) = 12;</span>