The answer is 1.
7 x 1 = 7
and 10 x 1 = 10
They don't have other factors in common besides 1.

Collecting like terms,

Since the signs change when its position changes.

#420
because 70x4=420 within 300 and 500 and is greater than 400 which is a multiple of 100
Answer:
You would usually use 3.14
Step-by-step explanation:
It kind of depends on where you are using it. In an equation, pi would be used as 3.14 and the answer would be approximated. To write it anywhere else (I dont know where else you would though), you would do the pi symbol. I hope this helps.
The answer is 32.72 degree.
<span />