If you're talking about just the decimal, then yes it is.
If you're talking about 22/7, then it still is.
But if you're talking about pi, then it isn't rational.
Answer:
Part 1) 
Part 2) 
Step-by-step explanation:
we know that
When divide exponents (or powers) with the same base, subtract the exponents
Part 1) we have

Part 2) we have

Answer:
4
cups of Salsa.
Step-by-step explanation:
Flora is making Salsa for a party.
Every 1 cup of chopped tomatoes makes 2
=
cups of Salsa
She uses 1
=
cups of tomatoes
1
cups of tomatoes makes:
×
÷ 1 =
= 4
cups of Salsa.
13 143rds would be written as 13/143.
123 centimeters into dekameters
0.123
10 centimeters = 1 decimeter
100 decimeters = 1 dekameter
Therefore, 100 centimeters = 10 decimeters = 0.1
23 centimeters = 2.3 decimeters = 0.023
0.1 + 0.023 = 0.123 dam