Question

Charlie has a $55 per month cell phone plan. The sales tax on his plan is 8%. Which expressions can be used to determine how much Charlie will pay each month in total (including tax)? (Select the TWO correct responses)

Option 4 55(108/100)

Option 2 55(0.08)

Option 3 55(8/100)

Option 1 55(1.08)

Answer 1

The correct answers are Option 4 55(108/100) and Option 1 55(1.08)

Explanation:

To begin, we must analyze the information we have and establish the result, in order to compare it with the results of the operations that the answers offer.

We know that the total Charlie pays for his cell phone plan is $ 55 + 8% tax.

One of the possible ways in which you can calculate a percentage would be in this case:

(55.8) : 100

440 : 100 = 4.40

This indicates that the tax was 4.4 added to 55, giving us a total of 59.4.

Now we just have to check that options 4 and 1 are correct. Let's see:

55 (108/100) =

55 (1.08) = 59.94

This last section is exactly the same as option 1, which also makes it a correct answer.