First of all, let's note the sales tax rates in each town. In Washington, we know it's 6%. In the town in Virginia, it's 5%. In the town in Maryland, it's 9%.
Let's figure out the total taxes in every town by applying the sales tax rate for each town.
To add percents to a whole number, we always multiply using 0.XX (example: to add 1% to a the number 100, we would multiply 100*0.01 and get the answer 1. We'd then add the 1 to the original number, 100, and get 101.)
In this case, we need to multiply the $1000 by the sales tax in Washington, 6%.
1000 x 0.06 = 60. Now, we add the 60 to the original number (1000), and get 1060. Now we know the total tax in Washington on the computer will be $60, and the total price we will pay is $1060.00
For Virginia, the sales tax is 5%. Let's add the 5% using the same method we used in the equation above.
1000 x 0.05 = 50. Now, add the 50 to the original 1000, and we get 1050. Now we know that the total tax in Virginia is going to be $50, and the total price that we'll pay in Virginia is $1050.00.
On to the final town, Maryland. In Maryland, the sales tax rate is 9%. Let's use the same formula again.
1000 * 0.09 = 90. Now that we have the 90, we add it to the original 1000, and we get 1090. In Maryland the total sales tax will be $90, and the total price we'll pay is $1090.00.
Now, let's complete the question by answering the 3 parts.
To spend the least amount total Amir should buy the computer in Virginia ($1050.00).
Amir would pay the most sales tax in Maryland ($90.00).
Amir would pay $60 sales tax in Washington, DC.
I hope this answer was in depth enough to help you out so that you can do this on your own in the future. :)
