Answer:
All of the expressions
Step-by-step explanation:
A rational number is one that can be written as a ratio, or a number with a terminating decimal.
All of the expressions are whole numbers, so they are all rational.
2x+2x+60=180 because the angles have to add up to 180
So you have
4x+60=180
4x=120
x=30
Answer:
Step-by-step explanation:
um
Answer:
229.7125
Step-by-step explanation:
1/9 - 5/6
Convert both of them into denominators of 18.
2/18 - 15/18
Subtract the numerators and keep the denominator:
-13/18
