The values of p from {1, 2, 3, 4, 5, 6, 7, 8, 9} that make 4p − p < 13 true are . the values of p from the set that make 4p − p > 13 true are

4p - p < 13
3p < 13
3p/3 < 13/3 ... divide both sides by 3
p < 4.3333
So if p is a number from the initial set given, then p can take on the values {1,2,3,4}



Repeat the same steps as above. This time the inequality sign is flipped the other way
4p-p > 13
3p > 13
3p/3 > 13/3
p > 4.333
now p can take on the values {5,6,7,8,9}