Answer:
the answer is B) 12a+6b
Step-by-step explanation:
3+9=12 so 3a+9a=12a,
7-1=6 so 7b-(1)b=6b
Answer:
(1, 7)
Step-by-step explanation:
It is given in the question that, The area of ava rectangular back yard is 325 square yards and the length of the yards is 13 yards.
Let the width be w yard .
And area of rectangle is the product of length and width .
So we have

Dividing both sides by w

So the width is 25 yards .