Answer:
x = 8°
y = 21°
Step-by-step explanation:
27 + 3y = 90
3y = 63
x + 8x + 18 = 90
9x = 72
Answer: yes
-4y+5z
Answer: $3.7
23-20=3
3/2=1.5
20-1.5=18.5
18.5/5=3.7