Answer:
The cost of 3 lessons would be $70, and Marlowe can have 4 lessons without exceeding $100.
Step-by-step explanation:
Number of Lessons & Costs
0- 10
2- 50
4- 90
6.- 130
The equation for this would be y = 20x + 10
To find the price for 3 lessons, plug 3 as x in the equation
y = 20(3) + 10 = 70
The cost for 3 lessons would be $70
20(4) + 10 = 90
20(5) + 10 = 110
5 lessons would be $10 over. With $100, Marlowe will be able to have 10 lessons with $10 left.
P.S., Sorry I can't graph it too, and sorry I didn't respond as quickly as I would.
