Agym holds one 60 minute exercise class on saturdays and several 45 minute classes during the week. last week all of the classes lasted a total of 285 minutes. write an equation you can use to find the number of weekday classes.

What is the distance between the points (2 -3) and (-6 4) on the coordinate plane

Which of the following best describes the graph below? + + 2 + 3 + 4 1 o a. it is not a function. o b. it is a one-to-one function. o c. it is a many-to-one function. o d. it is a function, but it is not one-to-one.

In a survey of 1015 adults, a polling agency asked, "when you retire, do you think you will have enough money to live comfortably or not. of the 1015 surveyed, 534 stated that they were worried about having enough money to live comfortably in retirement. construct a 90% confidence interval for the proportion of adults who are worried about having enough money to live comfortably in retirement.