Good evening 
Answer:
<em>a) the cost of one apple is €</em><em>0.9</em>
<em>b) the cost of one pineapple is €</em><em>5.4</em>
<em>c) the cost of two pineapples and six apples is €</em><em>16.2</em>
Step-by-step explanation:
Consider P the price of a pineapple
                A the price of an apple
 A pineapple costs six times as much as an apple means P = 6A
Mum paid €7.20 for one pineapple and two apples means P + 2A = 7.20
then
6A + 2A = 7.20
then
8A = 7.20
then 
A = €0.9   
Since P = 6A then P = 6×(0.9) = €5.4
the cost of two pineapples and six apples 
= 2P + 6A 
= 2P + P 
= 3P 
= 3×(5.4)
= €16.2
       
 
        
             
        
        
        
Answer:
D.10÷3
Step-by-step explanation:
ir you try dividing the number 10 by 3 you would get 3.333333 non-stop.
 
        
             
        
        
        
Answer:
$6
Step-by-step explanation:
$20-$14=$6
 
        
                    
             
        
        
        
Answer: 12.
To solve this problem, let's first solve for x. Thi is easiest done by figuring what QR is in terms of x using two equations, both from different lines. 
In the first line: QR = 15 - 4x. 
In the third line:QR = 13x - 1 - x = 12x - 1. 
Now, we have to set these equations equal to each other. 15 - 4x = 12x - 115 = 16x - 116x = 16x = 1
Next, we take line three, 13x - 1, and substitute x as 1. The answer is 12.
        
             
        
        
        
3/2x + 1/5 >= -1
3/2x >= - 6/5
x >= -12/15
x >= -4/5
-1/2x - 7/3 >= 5
-1/2x >= 22/3
x <= -44/3
Its D