Answer:
$149.80
Step-by-step explanation:
To find sales tax you need to multiply the original cost of the item by the sales tax (converted into a decimal). In this case the sales tax converted would be 0.07. Now multiply that decimal by the original cost:
140 x 0.07 = 9.80
9.80 is how much you would be paying in sales tax. Now take this amount and add it to the original amount to get the total cost.
140 + 9.80 = 149.80
