Help and show work plzz

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.

first option

a function is a relation in which an input is paired with exactly one output.

so, let's find the right answer.

in our first option, our inputs are january, february, and march. the outputs are 30, 28, and 25. each input has it's own output. this is correct!

our second option we know is incorrect, because ms. valverade has two outputs, dogs and cats. this is not a function.

our third option is incorrect as well. the yellow square has two ouputs, the square and the triangle.

lastly, in our fourth option, we see the number 7 two times with a different output. therefore, this is not a function.

remember: each input must be paired with only one output!

i hope this is what you were looking for.

see attached graph