i tried working this out but it doesnt make sense, at least the table doesnt... did you make this question up or get it off of a school assignment??
Answer:
S,Z,F
Step-by-step explanation:
i just did it
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>