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: amount of purchase standard shipping express shipping up to $50 $5.10 $7.00 $50 up to $100 $6.35 $8.20 $100 up to $200 $7.80 $11.60 $200 and over $10.50 $16.45 glenda 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. a. glenda has been billed correctly. b. glenda has not been charged enough for her purchase. c. glenda has been over charged by $3.40 for her purchase. d. glenda has been over charged by $3.80 for her purchase.

Option c.

Step-by-step explanation:

Glenda purchased 4 picture frames for $12.95 each and 4 mats for $5.89 each.

Cost of 4 picture frames = 12.95 × 4 = $51.80

Cost of 4 mats = 5.89 × 4 = $25.56

Total purchase = $51.80 + $25.56 = $75.36

taxes paid by Glenda = 6.5%

Total purchase price with tax = 75.36 +(6.5% × 75.36)

                                                 = 75.36 +(0.065 × 75.36)

                                                 = 75.36 + 4.8984

                                                 = $80.2584 ≈ $80.26

Shipping charges $50 up to $100 for express shipping = $8.20

So, her total bill would be = 80.26 + 8.20 = $88.46

Glenda was charged for the total of the online purchase = $91.86

She has been over charged = 91.86 - 88.46 = $3.40

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

"it's not the heat, it's the humidity".   that's a partly valid phrase you may have heard in the summer, but it's actually both.   the heat index, also known as the apparent temperature, is what the temperature feels like to the human body when relative humidity is combined with the air temperature.   this has important considerations for the human body's comfort.   when the body gets too hot, it begins to perspire or sweat to cool itself off.   if the perspiration is not able to evaporate, the body cannot regulate its temperature.   evaporation is a cooling process.   when perspiration is evaporated off the body, it effectively reduces the body's temperature.   when the atmospheric moisture content (i.e. relative humidity) is high, the rate of perspiration from the body decreases.   in other words, the human body feels warmer in humid conditions.   the opposite is true when the relative humidity decreases because the rate of perspiration increases.   the body actually feels cooler in arid conditions.   there is direct relationship between the air temperature and relative humidity and the heat index, meaning as the air temperature and relative humidity increase (decrease), the heat index increases (decreases).

step-by-step explanation: