Final answer:
Rita paid a total of $98.79 for the jeans, including sales tax.
Step-by-step explanation:
To calculate the total amount Rita paid for the jeans, we need to add the cost of the jeans to the amount of sales tax she paid. The sales-tax rate is 11 percent, which means Rita paid 11% of $89 as sales tax. To calculate the sales tax, we multiply $89 by 11% (or 0.11), which gives us $9.79.
To find the total amount she paid, we add the cost of the jeans to the sales tax. So the total amount she paid for the jeans is $89 + $9.79 = $98.79.
Learn more about calculating total cost with sales tax