Answer:
$16
Step-by-step explanation:
Looking at the Price for 5 Items (10 dollars), That means the Price Per Item Is 2 dollars. Now we know the Cost per Item, We need to multiply the Cost per item by 8 (2*8) making it 16. 
 
        
                    
             
        
        
        
hopefully this answer can help you to answer the next question
 
        
             
        
        
        
Answer:
50.3
Step-by-step explanation:
Volume = pi * h * r^2   *** Diameter = 2 * radius
<em>Substitute</em>
Volume = pi * 4 * (4/2)^2
<em>Simplify</em>
Volume = pi * 4 * 4
<em>Simplify</em>
Volume = 16 pi, which is approx. 50.3
 
        
             
        
        
        
<h2>Hello!</h2>
The answer is: 1.187 tablets each time (twice a day)
<h2>Why?</h2>
From the statement we know that 0.25 tablet (1/4) should be taken twice a day per 20 kg, it makes 0.5 table a day, per 20 kg.
First, we need to convert the given weight unit (pounds) to kg:

So,

A weight of 95 Kg, means 4.75 times more than the given information of 0.5 table a day, per 20 Kg

Then,

So,
For a weight of 95 Kg,  2.375  tablets should be taken a day, or 1.187  tablets each time.
Have a nice day!
 
        
        
        
The student that did more maths problems per minute is Diedra. 
 In order to determine which student did more maths problems per minute, the rate of each student has to be determined. Rate is the total questions solved divided by the time. 
Rate = total questions / total time 
Malcolm = 15 / 18 = 0.833 problems per minute 
Diedra = 16/ 17 = 0.941 problems per minute 
To learn more about rate, please check: brainly.com/question/9834403