Answer: Option D is correct. The function equation y= -16x^2 + 9x + 4
is non-linear.
Step-by-step explanation:
It is not linear because it is a quadratic function. 
You can see this on the graph in the photo below: 
,  Hope this helps :)
Have a great day!!
 
        
                    
             
        
        
        
Answer:
8/3=2/0.75
Step-by-step explanation:
The variable that you are looking for should be the simplified version of the number on the left. 
That is where the 2 would come in. Both numbers should be divided by 4 to gat the answer.
8÷4 = 2
3÷4=0.75
 
        
             
        
        
        
Answer:
80cm^2
Step-by-step explanation:
20*5=100
10*2=20
100-20=80
 
        
             
        
        
        
7-4x=2-9x the answer is x=1
        
                    
             
        
        
        
Answer:
6 papayas and 11 pineapples
Step-by-step explanation:
So, we need to find an answer of how many papayas and pineapples she bought, and we only spent $48. 
So,  papayas are $2.50 each, and Pineapples are $3.00 each and we only bought 17 fruits total.
lets try 8 papayas, and 9 Pineapples.
$2.50 x 8 = $20.00 total on Papayas
$3.00 x 9 = $27.00 total on Pineapples.
That would only be $47 spent total.
Lets try 10 papayas and 7 pineapples.
$2.50 x 10 = $25.00
$3.00 x 7 = $21.00
That would only be a total of $26 spent.
Lets try 6 papayas and 11 pineapples.
$2.50 x 6 = $15.00
$3.00 x 11 = $33.00
This would be a total of $48 spent.