Question

the sales tax rate is 3%. if alexa buys a guitar priced at $55, what will be the total cost including tax?

Explanation:

Step1: Calculate sales tax amount

The sales tax rate is 3% or 0.03 in decimal. The price of the guitar is $55. So the sales tax amount is $55 * 0.03.
$55\times0.03 = 1.65$

Step2: Calculate total cost including tax

Add the sales tax amount to the original price of the guitar. So total cost = $55 + 1.65$.
$55 + 1.65 = 56.65$

Answer:

$56.65$