Answer:
questions 2 answe is x+3less than equal to 13
<span>There are 1 billion 9 digit numbers (000,000,000 through 999,999,999). There are 45 different combinations of two different numerals (10 x 9 divided by 2). There are 512 (2 to the 9th power) different permutations for any two numbers to be used in a 9 digit number</span>
The relationship between the number of tickets is that Hannah sold three times as many tickets as Andrea.
<h3>How to determine the relationship?</h3>
From the question, we have:
Andrea = h
Hannah = 3h
This means that:
Hannah = 3 * Andrea
So, the relationship is that Hannah sold three times as many tickets as Andrea.
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Total mass = 6.08 x 10^23 * 1.67 x 10^-24 = 1.01536
The answer of this question is 42