Answer:
x = 45
Step-by-step explanation:
x and 3x are adjacent angles and the form a straight line. Their sum will be 180 degrees
x +3x = 180
Combine like terms
4x = 180
Divide each side by 4
4x/4 = 180/4
x =45
The answer is 7 multiple by 10 =70
Answer:
A.

Step-by-step explanation:
Add theses functions

Step-by-step explanation:
8^0=1 so the 4th option is incorrect
Answer:
$8.57
Step-by-step explanation:
42.86 x 0.20 = 8.572