At the beginning of the month, there were 80 ounces of peanut butter in the pantry. now, there is 1/3 less than that. how many ounces of peanut butter are in the pantry now?

What is the value of r of the geometric series?

Awater holding tank measures 105 m long, 50 m wide, and 8 m deep. traces of mercury have been found in the tank, with a concen- tration of 60 mg/l. what is the total mass of mercury in the tank? answer in units of kg.

Anumber cube is rolled two times in a row. find the probability it will land on 2 on the first roll and a number greater then 4 on the second roll