Rachel's free throw average for basketball is 60%. she wants to predict how many times in the next 50 tries she will make a free throw. describe how she could use 10 index cards to predict the answer. me.

If she shot her average she would make 30 out of 50 shots (AKA 60%) 
She could use the index cards to record each shot, recording 5 results on each one of the 10 cards

I understand this answer is really late for you but I hope you can still use it or someone else can use it if they have the same assignment

Number nine is f(x)= 40x : ) hoped i ya

Can you provide the tape diagram?