What is the total cost Micheal paid for 2 1/4 pounds of lumber at $4.00 per pound, including a 7% sales tax?

What is the total cost Micheal paid for 2 1/4 pounds of lumber at $4.00 per pound, including a 7% sales tax?

• A. $9.63
• B. $9.98
• C. $10.70
• D. $11.77

Answer: (A)

To determine the total cost Michael paid for 2 1/4 pounds of lumber at $4.00 per pound, including a 7% sales tax, we first need to calculate the cost of the lumber before tax. First, convert 2 1/4 pounds into an improper fraction, which is equivalent to 9/4 pounds. Then, multiply this by the cost per pound: \[ \text{Cost before tax} = \text{Weight} \times \text{Cost per pound} = \frac{9}{4} \times 4.00 \] Calculating this gives: \[ \text{Cost before tax} = 9.00 \] Now, to include the sales tax, we need to calculate 7% of the cost before tax. The sales tax can be calculated as follows: \[ \text{Sales tax} = 0.07 \times 9.00 = 0.63 \] Next, add the sales tax to the cost before tax to find the total cost: \[ \text{Total cost} = \text{Cost before tax} + \text{Sales tax} = 9.00 + 0.

To determine the total cost Michael paid for 2 1/4 pounds of lumber at $4.00 per pound, including a 7% sales tax, we first need to calculate the cost of the lumber before tax.

First, convert 2 1/4 pounds into an improper fraction, which is equivalent to 9/4 pounds. Then, multiply this by the cost per pound:

[

\text{Cost before tax} = \text{Weight} \times \text{Cost per pound} = \frac{9}{4} \times 4.00

]

Calculating this gives:

[

\text{Cost before tax} = 9.00

]

Now, to include the sales tax, we need to calculate 7% of the cost before tax. The sales tax can be calculated as follows:

[

\text{Sales tax} = 0.07 \times 9.00 = 0.63

]

Next, add the sales tax to the cost before tax to find the total cost:

[

\text{Total cost} = \text{Cost before tax} + \text{Sales tax} = 9.00 + 0.