Incorrect.
Go through the numbers and you'll find un-prime numbers ending in 1:
21, 81, 121,...
Solution:
Given:

To determine if an ordered pair is a solution, we substitute the x and y-values into the inequality and check if it is true.
Thus,




Therefore, the correct answers are selected as shown below;
I got an answer of 58.
Subtract 10 from the side length of 24 to get 14.
And use the side length of 5 to find another side length that also equals 5.
In total all your side lengths would be 10,5,5,24,14. And all of them together to arrive at an answer of 58.
Because that way you can find the answer when you are given a large amount of information and you don't have to guess until you get the answer right.