Answer:
Step-by-step explanation:
3/9 = 1/3
xy^2/x^8y^6 = 1/x^(8-1)y^(6-2) = 1/x^7y^4
therefore, 1/3x^7y^4
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}
Hope this help