Answer:
The answer is 337.5.
Step-by-step explanation:
Srry Im late. :(
I believe it is 4/12 since you have a total of 12 marbles and only 4 are red plastic ones
Let's begin by listing out the information given to us:

We are to find the value of y
<span>If x = Jamal's age , 2x = Wilma's age , x - 3 = Tim's age.
The sum of the ages is 17.
Jamal's age is 5
Wilma's age is 10
Tim's age is 2
Hope this helps!</span>