The scores on a psychology exam were normally distributed with a mean of and a standard deviation of . About what percentage of scores were less than .

Tim open up a new saving account with a $50 deposit and plant to deposit $20 per week into the same account. write an expression to represent the total amount in his savings account.

Rhombus adef is inscribed into a triangle abc so that they share angle a and the vertex e lies on the side bc . what is the length of the side of the rhombus if ab=c, and ac=b.

Determine if the outside temperature is a function of the time of day or if the time of day is a function of temperature and explain why or why not.