Answer:
a. = -2 b= 4 c= -3
Step-by-step explanation:
Step-by-step explanatio 16%
7x+90+20=180
7x+110=180
7x=180-110
7x=70
7x/7 = 70/7
X=10
Y=40
Acute, equilateral
the sale price of the item is 18.85
