Determine whether the sum of two values is a rational number or an irrational number.

1). Rational

2). Irrational

3). Rational

4). Rational

5). Irrational

Step-by-step explanation:

To solve this question we should follow the rule,

"Addition of rational and an irrational number is an irrational number."

1). (rational number)

    (negative rational number)

                  [rational number]

2). π → (Irrational number)

   24 → (rational number)

   π + 24 → (Irrational number)

   Since addition of a rational and an irrational number is an irrational number.

3). = 2 (rational number)

     5 (rational number)

    2 + 5 = 7 (rational number)

4). (rational number)

    (rational number)

    (rational number)

5). (rational number)

    → (Irrational number)    

    → (Irrational number)

n=9

step-by-step explanation:

7 times a number = 7n

decreased by 13 = 7n-13

same as is =

5 times the number = 5n

increased by 5 = 5n+5

7n-13 = 5n+5

2n=18

n=9