"n is less than 15 and greater than or equal to 3"

3 ≤ n < 15

Step-by-step explanation:

1. "n is less than 15” = "n < 15"

2. "n is greater than or equal to 3" = "n ≥ 3"

Reverse the second inequality.

3. "3 is less than or equal to n" = "3 ≤ n"

Combine 3 and 1.

3 ≤ n < 15

i would need to see the dot plot : )