Travis has passed 11 tests and his classmate jennifer has passed 2 tests. going forward travis plans to pass 2 tests per week. meanwhile jennifer plans to pass 5 tests per week. eventually she will catch up to travis. how many tests will each student have passed and how many weeks will it take?

If Travis already has passed 11, and Jennifer has already passed 2, then we just add 2 to Travis and 5 to Jennifer x amount of times until they have passed the same amount of tests. So:

Travis:         11      Jennifer:     2
Week1      +  2                      + 5
Week2          2                         5
Week3          2                         5
                                  
                    17                       17

So= it will take 3 weeks for them to have both passed a total of 17 tests each.

I’m confused as to what you are asking 66 2/3 percentage wise

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.