Answer:
x = 15
Step-by-step explanation:
angles 2 and 4 are supplementary so they add up to 180
2x + 10 + 4x + 80 = 180
6x + 90 = 180
6x = 90
Answer: $11.45
Food pill: $9
Tax: 6%
Tip: 20%
9+(-4-2)
=9+(-6)
=9-6
=3