Question

Which expressions below equal a rational number? Select all that apply.

Orx4
2.4
375
136 + 15
3 - 3
(149)(7)

Answer 1

B, D, E

Explanation:

A: simplifies to 2π. Multiplying the irrational number π by 2 does not result in a rational number.

B: the sum of two rational numbers is always rational

C: simplifies to 6+√5. The sum of a rational number and an irrational number is always irrational

D: simplifies to 0, a rational number

E: simplifies to 7, a rational number