Answer:
15 scores are less than 90
Step-by-step explanation:
Total 11 scores are less than 90 not 15
Let's solve ~
Value of x is 8
x = - 8
3x - 2y = 18 is the same as 3x - (2x - 13 times 2) = 18
Then I used an algebra site for the rest.
It should be x = - 8
i got A