Answer:
She now has 84 nickles. :)
Step-by-step explanation:
40+44=84
ANSWER:

STEP-BY-STEP EXPLANATION:
We have that the equation in its slope-intercept form is the following:

The slope can be calculated as follows:

We use the points (4,7) and (1,1) to calculate the slope:

Now, we calculate the value of b, using the point (1,1) and the slope, like this:

Therefore, the equation would be:
8.5x-6.1=-7.1
40x-6.1=-7.1
40x=-7.1+6.1
40x=-1
solution= x= -0.025
The slope-intercept form:

m - slope
b - y-intercept
We have the slope m = 5 → 
and point (-2, 0). Substitute:

<em>add 10 to both sides</em>

<h3>Answer: y = 5x + 10</h3>