Which of the following scenarios could be represented by the expression 10x 5y? a. the cost for x adults and y children to go to the movies if adult tickets are $10 and child tickets are $5. b. the total number of marbles in a jar if there are 5 green and 10 red. c. the total weight of a box containing x 5-ounce packages of almonds and y 10-ounce packages of peanuts. d. the number of kids in a school class if there are 10 girls and 5 boys.