1 kg = 2.20 pound
21kg = 21 x 2.20 = 46.2 pounds
Since the tv is heavier than the stand can support. The stand will not support the tv.
6.7-2.3= 4.4 is the answer to the problem
It is given that the cost price of the MP3 player is $60 and the selling price is $105.
The markup is given by the formula:
Markup = 
= 
= 1.75 × 100
= 175%
Yes, the classmate is correct.
Hence, the markup is 175% and the classmate is correct.
Answer: 7 shirts
Explanation: divide 77 by 9.85 you get 7.88888 repeating. You can’t have part of a shirt so she can buy 7 shirts.