Answer:
everything is in the picture
Answer:
We call the denominator rational.
Step-by-step explanation:
For example:

It's clear that the denominator is now a rational number, not an irrational one anymore.
Answer:
$400
Step-by-step explanation:
140 ÷ 35% = 400
Y-y
——-
X-x
21-9=12
5-(-1) =6
So the answer is D
Answer:
(6,6)
Step-by-step explanation:
Hope this helps!