Answer:
b-13
Step-by-step explanation:
I'm pretty sure this is right? Unless I'm missing something, if I am I am terribly sorry.
You must use the Order of Operations
Parentheses
Exponents
Multiply
Divide
Add
Subtract
The slope-intercept form:

m - slope
b - y-intercept → (0, b).
We have the points (4, 7) and (0, 7) → b = 7.
Calculate the slope:

Therefore we have 
The standard form: 
<h3>Answer: y = 7.</h3><h3><em>It's a horizontal line.</em></h3>
The answer would be 2 1/3 or 2.3 repeating or 7/3