A pharmacist needs 100 ml of 60 % ethyl alcohol .if the available concentration of alcohol is 70% compute for the volume of water and volume of 70% ethyl alcohol needed to prepared the desired concentratio

Evaluate the following expression 1/3^2

This stem-and-leaf plot represents the heights of the students on ralph's basketball team. one student's height is missing from the plot. if the mean height of all the students on the team is 61 inches, what is the missing height? a. 55 in. b. 59 in. c. 61 in. d. 65 in.

Afamily has five members. a mom, a dad, two sisters, & a brother. the family lines up single file. what is the probabillity that the mom is at the front of the line