The cost of the bicycle is $450.
A percentage is a way to describe a part of a whole. such as the of a pizza can be described as 25% of that pizza.
Sales tax = 6%
Tax given on bicycle = $27
Let the price of the bicycle be x. therefore,
6% of x = $27
Hence, the cost of the bicycle is $450.
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(4p-1)(4p-1)
=16p^2 - 4p - 4p +1
=16p^2 -8p +1 (That's your answer)