Question 353856
Write a piecewise function to model this situation: 
A garage will inflate a bicycle tires that are smaller than 20 inches in diameter for $1.50. 
One piece of the function is c(x) = 1.50 when 0< x <20
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They charge $2.25 to inflate bicycle tires that are 20 inches or larger.
A second piece of the function is c(x) = 2.25 when x >= 20

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Cheers,
Stan H