Answer:
 $516.48
Step-by-step explanation:
Base salary is what Pete will be paid whether he makes a sale or not. 
Sales commission is the percentage of the value of the sale that Pete makes which is added to his base salary. 
Base salary = $400
Total sales last week = $1456
Commission = 8% of total sales
Commission of last week = 8% of $1456
= 0.08*1456 = $116.48
Gross salary = base salary + commission 
= 400 + 116.48
= $516.48
 
        
             
        
        
        
Answer:
94 years
Step-by-step explanation:
We can approach the solution using the compound interest equation

Given data
P= $40,000
A=  $120,000
r=  1.25%= 1.25/100= 0.0125
substituting and solving for t we have

dividing both sides by 40,000 we have

dividing both sides by 0.005 we have

 
        
             
        
        
        
Answer:
5
Step-by-step explanation:
We start by seeing how many families we have in total, which is 20. We then must subtract the number of families with girls only, the number of families with both boys and girls, and the number of families with no children. 20 - 7 is 13, then 13 - 8 is 5, and 5 - 0 is 5.