Answer:
   $8
Step-by-step explanation:
After the shoe purchase, her balance was $50 -45 = $5.
After depositing her babysitting earnings, her balance was $5+25 = $30.
After buying pizza, her balance was $30 -42 = -$12.
<em>Assuming no overdraft charge</em>, her balance after depositing her earnings was ...
   -$12 +20 = $8
Sally's balance on Sunday was $8.
 
        
             
        
        
        
Answer:
31
Step-by-step explanation:
100-7= 93
93÷3=31
 
        
                    
             
        
        
        
Answer:
Correct option is
C
5/2
 
 
Total no. of numbers=15
No. of prime numbers between 1 to 15=6(2,3,5,7,11,13)
Probability = 15
6 = 52
 
        
             
        
        
        
Answer:
(y+1)/5
Step-by-step explanation:
you meant f^-1(x) ?
let y= 5x-1
Make x subject of formula 
y+1=5x
x=(y+1)/5
f^-1(x)=(x+1)/5 replace y by x 
 
        
             
        
        
        
How much are the owner's expenses for 10 days?
10 * 130 = $1300
  
How much money does the owner make selling pizzas per day?
200 * 3 = $600
  
How much money does the owner make selling sandwiches per day?
85 * 2 = $170
  
In one day, the owner sells 600 + 170 = $770 worth of pizza and sandwiches
  
Over the course of ten days, that is 10 * 770 = $7700
  
Profit = revenue - cost = 7700 - 1300 = $6400
There ya go