\( \definecolor{colordef}{RGB}{249,49,84} \definecolor{colorprop}{RGB}{18,102,241} \)
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C
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\(\pi\)
e
\(\frac{a}{b}\)
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\(\sqrt{\,}\)
\(a^{b}\)
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\(\div\)
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tan⁻¹
A car park charges \(\dollar\)3 per hour for the first 4 hours of parking. If a car stays longer than 4 hours, the rate drops to \(\dollar\)2 for every additional hour.
Write a piecewise function \(C(t)\) for the total cost of parking for \(t\) hours.
Calculate the cost of parking for 7 hours.
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