Question

John and Lexi are playing a marble game according to the rules for points are awarded for points are awarded for each red marble collected in seven points are awarded for each blue marble collected which expression represents johns total score if he has r red marbles and b blue marbles

Answer 1

for a red marble you have 4 points and a blue you have 7, therefore the R(number of red marble) and B( blue marbles)

the answer is gonna be 4r+7b