Answer:
16
Step-by-step explanation:
10 · 4 = 40
640/40= 16
 
        
             
        
        
        
At most she can listen to her music in 16 different ways. 
        
             
        
        
        
Answer:
Grampy
Step-by-step explanation:
                 money      cards
Grampy=   $12             4 packs
  James=    $28            7 packs
12*2= 24 dollars and 8 packs
while James payed 28 dollars for 7 packs
So Grampy got a better deal.
 
        
             
        
        
        
Answer:
1.2 cans
Step-by-step explanation:
5/3=1.6666667
2/1.2=1.6666667
 
        
             
        
        
        
Remember that you can convert percentages to decimals by dividing them by 100.
You can convert decimals to percentages by multiplying them by 100.
Here are my answers:
11.
(a) 55% < 0.75
(b) 0.23 < 28%
(c) 74% > 0.70
(d) 1/2 < 2/3
(e) 3/4 < 7/8
(f) 3/5 > 2/11