Answer:
500/31.25=16
Step-by-step explanation:
The school bought 16 calculators
 
        
             
        
        
        
Answer:
45 minutes
Step-by-step explanation:
1/2 hour=30 minutes
2/3 of chapter=30 minutes
1/4 of hour=15 minutes
1/3 of chapter=15 minutes
3/4 of hour=45 minutes
3/3 of chapter=45 minutes
 
        
             
        
        
        
Suppose the original price to be x.
62%x=296.4
Divide both sides by 62% to get x=478, which is the original price.
        
                    
             
        
        
        
Answer:
<h2>
£1,330.46</h2>
Step-by-step explanation:
Using the compound interest formula 
A = amount compounded after n years
P = principal (amount invested)
r = rate (in %)
t = time (in years)
n = time used to compound the money 
Given P =  £1200., r = 3.5%, t = 3years, n = 1 year(compounded annually)

Value of Charlie's investment after 3 years is £1,330.46