Bentley bought ff folders that cost $0.90 each and mm markers that cost $0.40 each. Sales tax is 6%. Which expression represents the total amount Bentley paid, including tax?

Answer
Multiple Choice Answers
0, point, 9, left parenthesis, 0, point, 0, 6, f, right parenthesis, plus, 0, point, 4, left parenthesis, 0, point, 0, 6, m, right parenthesis0.9(0.06f)+0.4(0.06m)
1, point, 0, 6, left parenthesis, 0, point, 9, plus, 0, point, 4, right parenthesis1.06(0.9+0.4)
1, point, 0, 6, left parenthesis, 0, point, 9, f, plus, 0, point, 4, m, right parenthesis1.06(0.9f+0.4m)
0, point, 0, 6, left parenthesis, f, plus, m, right parenthesis, plus, left parenthesis, f, plus, m, right parenthesis0.06(f+m)+(f+m)

1 answer

To find the total amount Bentley paid, including tax, we first need to calculate the total cost of the folders and markers before tax, and then apply the sales tax.

  1. The cost for the folders is \(0.90f\), where \(f\) is the number of folders.
  2. The cost for the markers is \(0.40m\), where \(m\) is the number of markers.

The total cost before tax is: \[ 0.90f + 0.40m \]

Next, we need to account for the sales tax, which is 6%. To include the tax, we multiply the total cost by \(1.06\): \[ \text{Total cost including tax} = 1.06(0.90f + 0.40m) \]

Looking at the provided multiple choice answers, we can see that the correct expression that matches our calculation is: \[ 1.06(0.9f + 0.4m) \]

So, the correct answer is: 1, point, 0, 6, left parenthesis, 0, point, 9, f, plus, 0, point, 4, m, right parenthesis.