SOMEONE PLEASE HELP MEEEEEE

The equation is C, and the correct answer is 6 (D)

Step-by-step explanation:

We first look for the correct equation. If Matt charges 9 dollars per hour, and earned a total of 99, then we known that 9*the number of hours = 99. Moving on, we know that he babysat Friday night for 5 hours, but we don't know the number on Saturday. BUT we do know that 5+saturday hours = total number of hours. Putting this into a formula, we get 9(5+x (where x = #of hours worked on saturday) = 99(total number)

Our final equation is 9(5+x)=99.

Solving this by dividing both sides by 9, we get 5+x=11. Subtracting 5 from both sides gives us x = 6.

The first thing we need to do is calculate the slope.

To calculate slope, we plug our numbers into the following general formula:

So

So, our slope is 3/4.  

Now we pick whatever point we want to work with.  For this situation, i'm going to pick the second, since it is positive numbers.

Now, we plug our numbers into the point-slope form equation.  The general formula is

M is our slope,

Y₁ is our Y-coordinate and X₁ is our X-coordinate.

So, when we plug our numbers in we get