Answer: 90
Step-by-step explanation:
45.5-.5=45
45^2=90
The percentage that the number of airlines with an average airplane age of 14 is less than the number of airlines with an average airplane age of 11 is:
B. 20%.
<h3>What is a percentage?</h3>
The percentage of an amount a over a total amount b is given by a multiplied by 100% and divided by b, that is:

The percentage of airlines with an average age of 14 years is:

The percentage of airlines with an average age of 11 years is:

The difference is:
33.33% - 13.33% = 20%.
Hence option B is correct.
More can be learned about percentages at brainly.com/question/10491646
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Answer:
13
Step-by-step explanation:
8+2=10
10+3=13

5600 is 100 times larger than 56
Answer:
30
Step-by-step explanation:
Formulate:
50%×60
0.5×60
= 30