Answer:

Step-by-step explanation:

The mean is the best measure to summarise the scores.
Subtract to find the amount of the increase:
168 - 140 = 28
The increase in price was $28.
Now divide the amount of increase by the original price.
This will give you a decimal, then multiply the decimal by 100 to get the percent:
28 / 140 = 0.2
0.2 x 100 = 20% increase.
5 37/100
5 is the whole part and you have 37 hundredths