Final answer:
Tommy's new pair of running shoes costs $150, and with a 15% sales tax, the total price including tax comes to $172.50.
Step-by-step explanation:
To calculate the total price of the running shoes that Tommy wants to buy, we first need to determine the amount of sales tax that will be added to the cost of the shoes. The price of the shoes is $150, and the sales tax rate is 15%. To find the sales tax amount, we convert the percentage to a decimal by dividing by 100 (15% = 0.15) and then multiply it by the cost of the shoes.
$150 x 0.15 = $22.50
Now, we add the sales tax amount to the original price of the shoes to find the total cost.
$150 + $22.50 = $172.50
The total price Tommy will pay for the shoes, including sales tax, is $172.50.