Question

the sales tax rate is 10%. if melissa buys a cell phone priced at $50, how much tax will she pay?

Explanation:

Step1: Convert percentage to decimal

The sales - tax rate is \(10\%=\frac{10}{100}=0.1\)

Step2: Calculate the tax amount

The price of the cell phone is \(P = 50\). The tax amount \(T\) is calculated by the formula \(T=P\times r\), where \(r\) is the tax rate. Substitute \(P = 50\) and \(r=0.1\) into the formula: \(T = 50\times0.1\)

Answer:

\(5\)