Find the mean of the data in the stem-and-leaf diagram below. 2 1, 5 3 4, 4, 5, 9 4 6, 7, 9, 9 Key: 2 | 5 = 25

Acompany wants to reduce the dimensions of its logo by one fourth to use on business cards. if the area of the original logo is 4 square inches, what is the area of the logo that will be used on the business cards?

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.

James was playing a game with his friends. he won 35 points. then he lost 15, lost 40 and won 55. how did he come out