Answer:
Any y=mx+b or y=mx-b is not proportional because it either y or x wont be (0,0).
Hope this helped!
I suspect this is what you mean, if let me know
2x(3)^2+x(2)^2
2(3)(9)+3(4)
54+12=66
Answer:
Eric,Tony,Jeff,Gary
Step-by-step explanation:
Given the payments made by each individual below:
- Tony paid 35% of the bill.
- Eric paid 3/8 of the bill.
- Jeff paid 0.175 of the bill
- Gary paid 1/10 of the bill.
The most convenient way to order their payments is to convert each to percentage.
Eric paid 3/8 of the bill.
- In Percentage:

Jeff paid 0.175 of the bill
- In percentage, 0.175 X100 =17.5%
Gary paid 1/10 of the bill.
In Percentage: 
Therefore, the order from most to least is:
Eric(37.5%), Tony(35%),Jeff(17.5%),Gary(10%)
Simple...
you have:
1.) -8x-16 --->>>
Factor out a -8 -->>
-8(x+2)
2.)9d+15db --->
Factor out 3d -->
3d(3+5b)
3.) 2a-9ax-->>
Factor out -a -->
-1a(9x-2)
Thus, your answer.