Answer:
b part is the correct answer
4x+5x = 90
9x = 90
x = 10
10y + 10 + 5x = 180
10y + 10 +5(10) = 180
10y + 60 = 180
10y = 120
y = 12
answer
<span>d) x = 10, y = 12</span>
(-1.1)*(-1.1)*(-1.1)=-1.331
Step Number 1. is to Simplify

Step Number 2. <span>Simplify so you get </span>

Done! :)
Answer:
um could you transkate to english so i can answer your question?
Step-by-step explanation: