Answer:

Step-by-step explanation:

Open up the parentheses

-7x cancels out on both sides

-12 cancels out on both sides

I hope this helps!
Answer:
9
Step-by-step explanation:
5 x 9 is 45 plus 5 gives you 50
Answer:
5/8 of a cup
Step-by-step explanation:
What you do is you add 1/2 and 3/4 together.
1/2+3/4=5/4.
Noel used half of 5/4 so you would multiply it by 1/2
5/4*1/2=5/8 is your answer.
Answer:
last one Building B; it is around 33.29 feet taller than building A Step-by-step explanation:
Answer:
Step-by-step explanation:
Y = mx + b
-1/2 x + 3y = -3
3y = 1/2 x -3
y = 1/6 x - 1
Where slope m = 1/ 6and y intercept b = -1