Algebra-1

The number that is within the range is: 9.

 

Given range:

d ≤ 12 and 0 < d ≤ 20

 

To find a number that satisfies both conditions, we must determine the intersection of these two ranges. The first inequality, d ≤ 12, restricts d to values less than 12. The second inequality, 0 < d ≤ 20, restricts d to values between 0 and 20, including 20 but not 0.

 

The intersection of these ranges is: 0 < d ≤ 12.

 

This means d must be greater than 0 and less than or equal to 12.

 

Evaluating the options: