Answer:
A variable is a letter used in a mathematical equations , formula or expression
Answer:
40 units
Step-by-step explanation:
On the number line, the distance between x and y is given by
|x-y|.
To find the distance between -70 and -30 on the number line, we find the absolute value of their difference.

Therefore the distance between -70 and -30 on the number line is 40 units.
Answer:
0.75
Step-by-step explanation:
Answer:
20 degrees
Step-by-step explanation:
A semicircle is half of a circle.
1/9 of a semicircle is 1/18 of a circle.
1/18 of 360 = 20 degrees.