19. At a supermarket, a 6-ounce bottle of salad dressing costs $1.56. A 14-ounce bottle costs $3.36. A 20-ounce bottle costs $5.60. Which bottle has the lowest cost per ounce?

3. Tamara drives 825 miles to California. The trip takes her 17 hours. She uses 38.5 gallons of gasoline on the trip, which costs her $125. What is Tamara's average speed (miles per hour) ? What is Tamara's gas mileage (miles per gallon) ? What is the unit price she paid for gasoline ($ per gallon) ?

The list price, that means the price without a discount, for a new iPad is $650. The local Apple dealer is having a 20% off the list price sale. With the 20% discount, how much will the iPad cost you? A. $570 B. $630 C. $500 D. $520 E. $130

You've purchased 4 gallons of milk for $9.96. How much would 1.5 liters of milk cost? $

I need help figuring how to do the question on the CDs. Thank you!

Suppose your friend wins the lottery and is thinking of buying a new Tesla for around $125,980.  The taxes on this vehicle will total $9,133.55.  What is the effective tax rate that your friend is paying on the Tesla?     92.75%     13.79%     12.79%     7.25%

6.) A motor scooter you want to purchase costs $2,800, before sales tax. Given a sales tax rate of 4% determine the following. Find the total cost of the scooter including the sales tax.

Are these answers correct. Thank you.

1. How many cups of cooked kidney beans are required to triple this recipe? (1 cup = 8 ounces) 2. Sour cream is sold in 500 ml containers. How many times can this recipe be made with one container of sour cream? (1 cup = 250 ml) 3. Paint manufacturers suggest a paint coverage rate of 400 square feet per one­ gallon can. How many one-gallons cans of paint does the homeowner need to buy to paint the basement walls with one coat? (1 square foot= 0.09290304 square meters)

An item is priced at $14.27. If the sales tax is 7%, what does the item cost including sales tax?   A.$24.26 B.$29.54 C.$15.27 D.$1.00