Answer:
$90
Step-by-step explanation:
Let x = original cost
20% of x is $18
0.2x = 18
divide both sides by 0.2
x = 90
Answer: $90
Answer: 31
Step-By-Step Explanation:
<PCH+<HCK=180-DEGREE BEING IN A STRAIGHT LINE.
3M+58+8M+155=180
11M=180-213
11M=-33
M=-3
SO,
<PCH
3M+58
=3*(-3)+58
=58-9
=49-DEGREE