Answer: d.
Step-by-step explanation:
Add 18 to both sides.
15x<12+18
Simplify 12+18 to 30.
15x <30
Divide both sides by 15.
x < 15/30
Simplify 30/15 to 2.
x < 2
Answer:
78
18+45x
Answer: 220
Step-by-step explanation: 130 degrees + the 90 degree angle = 220 degrees
Hope this helps:)
18.1 is the answer. I am glad I could help.