Question

Jon and Lexi are playing a marble game. According to their rules, 4 points are awarded for each red marble collected and 7 points are awarded for each blue marble collected. Which expression represents Jon's total score if he has r red marbles and b blue marbles?

1. 4r − 7b
2. 2r − 7b
3. 11rb
4. 4r + 7b

Answer 1

4r + 7b

Explanation:

I got it correct on my test. that should be good enough for you guys but I'll upload a screenshot just in case.

Answer 2

Answer: Option 4 is correct.

Explanation:

Since we have given that

Number of points for red marbles = 4

Number of points for blue marble = 7

Let the number of red marble be 'r'.

Let the number of blue marble be 'b'.

According to question, we get that

4r + 7b

Hence, Option 4 is correct.