Question

The two-way table shows the number of students in a school who have bikes and/or skateboards at home:

Answer 1

I believe it's 10 because if there is a total of 32 that have bikes and 42 that have skateboards you just subtract 32 from 42 to get a total of 10. The table is a little messed up but I tried. 

Answer 2

The answer is 30, because you have to retrieve the totals. The total amount of people who have bikes is 72. The total amount of people with skateboards is 42. Subtract 42 from 72. You get 30.
Answer: 30.

Hope this helps! ^_^