Your teacher is giving a test that has 28 questions. Some
questions are worth 3 points and others are worth 5
points. The test is worth 100 points total. Which system
represents this information?
A x + y = 28
3x + 5y = 100
B x - y = 28
5x + 3y = 100
C x = y + 28
5x + 3y = 100
D y = 28-x
3x - 5y = 100