Y=300+30xy=15x y=300−30xy=15x

Question 8 (1 point)

Mikey has $100 to spend on books. She wants to buy at least 14 books. Hardback books cost $15.00 and paperback books cost $7.00.

Represent the scenario as a system of inequalities.
Question 8 options:

x+y≥10015x+7y≤14

x+y≥1415x+7y≤100

x+y≤10015x+7y≥14

x+y≤1415x+7y≥100

Question 9 (1 point)

If you were to solve the system using elimination, what could be the first step to solving?

3x−7y=102x−5y=12

Question 9 options:

Multiply the first equation by 2 and the second equation by 3.

Multiply the first equation by -2 and the second equation by 3.

Multiply the first equation by 5 and the second equation by 7.

Multiply the first equation by-22 and the second equation by -3.
Question 10 (1 point)

Solve by graphing.

4x−6y=86x−9y=15

Question 10 options:

(1, 7)

(7, 1)

No solution

Infinite solutions