glenda makes an online purchase of 4 picture frames for $12.95 each and 4 mats for $5.89 each. the site says…

glenda makes an online purchase of 4 picture frames for $12.95 each and 4 mats for $5.89 each. the site says that taxes paid by the customer are 6.5% of the total purchase price. shipping charges are based on the following table:\n| amount of purchase | standard shipping | express shipping |\n| ---- | ---- | ---- |\n| up to $50 | $5.10 | $7.00 |\n| $50 up to $100 | $6.35 | $8.20 |\n| $100 up to $200 | $7.80 | $11.60 |\n| $200 and over | $10.50 | $16.45 |\nglenda selects express shipping for her purchase and the company bills her credit card $91.86 for the total of the online purchase. determine if glenda has been billed correctly for her purchase.\n a. glenda has been billed correctly.\n b. glenda has not been charged enough for her purchase.\n c. glenda has been over charged by $3.40 for her purchase.\n d. glenda has been over charged by $3.80 for her purchase.

glenda makes an online purchase of 4 picture frames for $12.95 each and 4 mats for $5.89 each. the site says that taxes paid by the customer are 6.5% of the total purchase price. shipping charges are based on the following table:\n| amount of purchase | standard shipping | express shipping |\n| ---- | ---- | ---- |\n| up to $50 | $5.10 | $7.00 |\n| $50 up to $100 | $6.35 | $8.20 |\n| $100 up to $200 | $7.80 | $11.60 |\n| $200 and over | $10.50 | $16.45 |\nglenda selects express shipping for her purchase and the company bills her credit card $91.86 for the total of the online purchase. determine if glenda has been billed correctly for her purchase.\n a. glenda has been billed correctly.\n b. glenda has not been charged enough for her purchase.\n c. glenda has been over charged by $3.40 for her purchase.\n d. glenda has been over charged by $3.80 for her purchase.

Answer

Explanation:

Step1: Calculate the cost of picture frames.

$$ 4 \times $12.95 = $51.80 $$

Step2: Calculate the cost of mats.

$$ 4 \times $5.89 = $23.56 $$

Step3: Calculate the total purchase price (subtotal).

$$ $51.80 + $23.56 = $75.36 $$

Step4: Calculate the tax amount (6.5% of subtotal).

$$ \text{Tax} = 0.065 \times $75.36 = $4.8984 \approx $4.90 $$

Step5: Determine the express shipping cost.

The total purchase price ($75.36) falls in the range "$50 up to $100". The express shipping cost for this range is $8.20. $$ \text{Shipping Cost} = $8.20 $$

Step6: Calculate the total cost including tax and shipping.

$$ \text{Total Cost} = \text{Subtotal} + \text{Tax} + \text{Shipping Cost} $$ $$ \text{Total Cost} = $75.36 + $4.90 + $8.20 = $88.46 $$

Step7: Compare the calculated total cost with the billed amount.

The company billed $91.86. The calculated correct cost is $88.46. $$ \text{Difference} = $91.86 - $88.46 = $3.40 $$ Glenda was overcharged by $3.40.

Answer:

c. Glenda has been over charged by $3.40 for her purchase.