Step-by-step explanation:
 S.I = PRT
 =$7430×(5÷100)× 3
 =$1114•50 
 
        
                    
             
        
        
        
Answer:
Minimum average cost = 743.75
Number of dvds to achieve the cost = 62.5 
Step-by-step explanation:
Given the cost equation 
C = 0.04x² − 5x + 900
To Obtian the minimum average cost ;
Find dc/dx = 0
Diffentiate cost, c it ith respect to x
dc/dx = 2(0.04x) - 5
dc/dx = 0.08x - 5 = 0
0.08x = 5
x = 5 / 0.08
x = 62.5
Substitute the value of x into C to obtain the minimum average cost
C = 0.04(62.5)² - 5(62.5) + 900
C = 743.75
 
        
             
        
        
        
Answer:
.125
Step-by-step explanation: To convert 1/8 to a decimal, divide the denominator into the numerator. 1 divided by 8 = . 125. To convert the decimal .