The sum of three numbers is 23. The first number is 7 less than twice the second number. The third number is one greater than the sum of the first and second numbers.

6

Step-by-step explanation:

We know the second number has to more than four, otherwise we can't subtract 7. But, if you calculate, 8 would be far too big. A number in between 4-8, 6.

The double of 6 is 12. 12-7=5.

This is showing the first number would be 5 and the second 6.

The third is one more than their sum. 5+6=11+1=12.

So finally adding, 11+12=23.

no association

step-by-step explanation:

if you have eyes and you can use them efficiently you can see that it just looks like random dots like do a line of best fit and like they're so spread out it's such a weak association you might as well consider it nonexistent

b. 153 students do not participate in sports and seventy-five 12th graders were surveyed