Answer:
ok
Step-by-step explanation:
The weight can vary from 22.5 to 25.5
$20
Easy formula for these problems is new price divided by change in percent as decimal with 1 at begining. So for this problem it is 21.05/1.0525. You can then test your answer by muliply you answer by 1.0525.
Answer: 2
2.1 is the same as 21/10
which will give 2
87.0
17.4
17x5=85
.4x5=2.0
85+2.0=87.0
