Hey there!
B in a slope intercept form equation is the the y intercept. It dictates where the line will cross the y axis, and therefore the line's placement altogether. This is because if there was no y intercept, the line would only be shaped by the slope, and would start at 0.
Hope this helped!
Answer:
$18
Step-by-step explanation:
15*.2=3
15+3=18
The haircut is $18 with tip included.
Smaller numbers sits on the left of greater numbers on the number line.
So, since

we're stating that -4/7 is larger and -2 is smaller. So, -4/7 sits on the right of -2 on the number line.