Answer:
look at the picture i have sent
The answer is 9 sorry if this is wrong
I think you would go like this: If 15 covers 5 inches then I know I am going to need at least 30 but I have 3 more spaces so I have to divide 5/15 (That is 15 divided by 5) The answer is 3 so I have to go 3 x 3 which is 9 and then I add
9 to 30 which is 39 so there is my answer. If I did it incorrect please tell me. :). I hope it helps.
Answer:
well you dont have a value of amounts of cavities so ill write write an equation 50+x100 where x represents amount of cavitys
They can make the numbers 13, 46, 45, 64, 65, 64, 41, 43, 14, 15, 16, 34, 35, 36, 32, 62, 42, 12, 51, 52, 53, 54, 55, 56.