a regular sized (16 oz) peanut butter is sold for $3.36 and a family sized (40 oz) peanut butter is sold for $7.60. which size is the better buy?

Acredit card advertises an annual interest rate of 23%. what is the equivalent monthly interest rate?

Which of the following is the sum of 3 1/6 + 6 3/8?

Adolphin is swimming with her friend. the dolphin jumps to a height of 4.54.54, point, 5 meters above the surface of the water as her friend swims 9.89.89, point, 8 meters directly below her. what is the position of the dolphin's friend relative to the surface of the water? meters