15(.20)= 3 marbles are blue.
15(1/3)= 5 are green
15(.20)= 3 are yellow
3+5+3=11 marbles
15-11= 4 that means the rest of them are red.
It helps when you count decimal places to line up the numbers
Answer:
idk sorry kid you'll have to find someone else to help you...
Step-by-step explanation:
I believe it is f-1(x)=-2+5x
Let me know if I am wrong because I love math and I want to learn from my mistakes. Thank you