Answer:
37m (hope im doing it in right way)
Step-by-step explanation:
51 yellow marbles
work backwards~
6 more than: subtract 6=60
4 times: 60÷4=15
66-15=51
(that should be right)
Answer: 4y+7/3y
The slope is 1/3. Goes 1 up and 3 to the right.