Answer:
Step-by-step explanation:
Let x represent the number of multiple choice questions in the science test.
Let y represent the number of short answer questions in the science test.
Each multiple choice question is worth 2 points and each short answer is worth 5 points. This means that x multiple choice questions would be worth 2x points and y short answer questions would be worth 5y points
Therefore, an equation to represent the total points possible for the test would be
2x + 5y
