D is the answer to your question
The answer is (9,21) because is you plug in 9 for x, and add 12, you get 21.
An integer that would work is 14 so -3 + 14 = -11
15.
0.20*x = 0.01*x + 38 => 0.19*x = 38 =>( 19/100 )*x = 38 => x = 3800/19 => x = 200.
There must be more students in the class, and most of the class must have scored lower then Paul and his friends. I could be wrong, but I hope this helps! :D
