Supplementary angles will always add up to 180. If you had a straight line, and you drew another line across that line, the two angles on either side of that line would add up to 180 because a flat line is equal to 180 degrees.
Answer:
D.
Step-by-step explanation:
None of the above because I believe that it is <em>points</em>
Simple, what you're basically doing is simplifying,

well, you have 3x and you have

12/3=4
and you can "cancel" out an x, making your answer,

.
Answer:
68 minutes, 1 mile every 8.5 minutes
Step-by-step explanation:
:)
If he got the jeans for 40% off he paid 60% of the cost for the jeans. With that you can setup an equation.
20 is 60% of what number
is signifies equals and of signifies multiplication
20 = 0.6*x
x = 20/.6
x = 33.33
The regular price of the jeans is $33.33