Answer:
180
Step-by-step explanation:
hailey has 180 nickels
Answer:
288
Step-by-step explanation:

then

72=9k
dividing both side by 9
k=72÷9
=8

y=8×6²
y=8×36
y=288
As the y intercept lies on the x-axis, x=0
To find the y-intercept, put x=0 into the equation:

Therefore,the y-intercept=9.
Hope it helps!
Answer:
The distance is
or
.
Step-by-step explanation:
Slope of parallel: 2
Slope of perpendicular: -1/2
Pick a point for y =2x + 7. For example (0,7)
Use the perpendicular slope to get to the other line to find the other point of y=2x-3. Look at the screenshot...I got (4,5).
Distance formula 
Insert (0,7) and (4,5)
= 