Answer:
(B) 2
Step-by-step explanation:
=> 
=> 
=> 
Cancelling 
=> 
=> 2
Answer:
123 domestic stamps
89 foreign stamps
Step-by-step explanation:
4 people x 45 minutes = 180 minutes total to paint 5 walls
180/5 = 36 minutes of man work per wall
36 * 4 walls = 144 total minutes
144/6 people = 24 minutes total
5 of 8 is 62.5%
13 of 22 is 59.09%
22 of 30 is 73.33%
12 of 25 is 48%
Store 3 has the greatest percentage of smartphones