The cafeteria contributed for pies to the sale. Each pie was then cut into five pieces and sold. There were a total of 60 pieces to sell. How many pies did the club make?

The answer to your question is 12 pies

Step-by-step explanation:

Data

Each pie is cut into 5 pieces

total number of pieces = 60

The Number of pies = ?

Process

1.- Just divide the total number of pieces by 5 (which is the number of pieces a pie is cut)

                   60 / 5 = 12

2.- Conclusion

The cafeteria made 12 pies

So, the equation I got was y = -7x -15.

Firstm you gotta find the slope using the slope formula, m = (y2-y1) / (x2-x1) (plug in the two initial points you were given, (7,-2) and (8,5). After you get the slope, which I got as -7, plug that into the y=mx+b formula with your last point (-3,6)
So, 6= -7(-3) + b -7 = m, -3 = x, 6 = y. after you solve the equation you should get -15. plug that into the y=mx+b formula andyou have your final equation,
y = -7x -15. to check if all of the point are on this equation, I'd recommend plugging the equation into the demos graphing calculator, it really helps. Hopefully this helped you!