<h3>
Answer: 1</h3>
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Explanation:
The rule is
x^0 = 1
where x is nonzero (ie, not equal to zero). So whatever number you raise to the zeroth power, the answer is always 1.
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Let's see why this rule works
x^1 = x ... raising something to the first power is itself
(x^1)/x = x/x ... divide both sides by x
(x^1)/x = 1 .... turn the 'x/x' into 1
(x^1)/(x^1) = 1 .... rewrite the second 'x' as 'x^1'
x^(1-1) = 1 ... subtract exponents
x^0 = 1
Assuming 1 hot dog per person, the error was
.. (220/(220 +35) -1)*100% = -13.7%
Al's prediction was 13.7% low.
The answer to the first part is (4,1).
The answer to the second part is (11,2).
