Answer:
3 9/10,64,B,D
Step-by-step explanation:
A rational number is a number that can be written into a fraction. pi, some square roots, e, etc., are irrational numbers(numbers that cannot be written into a fraction).
Answer:

Step-by-step explanation:
we have

step 1
Solve the numerator of the quotient

step 2
substitute in the original expression


step 3
simplify
