Ian missed 10 times out of 15 shots in the first half of the game, during the second half of the game he made 8 out of 10. Use the numbers 100, 25 and 18 to set up a proportion to solve what the to percentage of shots made was.

Google it that might work

This law is sometimes called the grouping property. as you can see, regardless of how the numbers are grouped, the answer is still 13. the associative law of multiplication is similar to the same law for addition. it says that no matter how you group numbers you are multiplying together, you will get the same answer.