Which expression represents rational numbers? select all that apply

1.

2. 13.5 +

3.

6. equals to 10 * 10 = 100 which is rational

2. 13.5 + equals 13.5 + 9 = 22.5

3. -- 3+27 = 30

6.

Option 4 and 5 are irrational because they include    and which are not a perfect square and their answers will be non recurring and non terminating decimal fraction.

d. it is a convex pentagon because it has five sides and none of the sides would extend into the inside of the polygon.

step-by-step explanation:

table 3 represents a direct variation function. : )