Ellen Obrien earns $24.68 per hour as an aircraft mechanic at a local airport. How many hours per week must she work if she wants to earn approximately $850 per week?

In the diagram, the measure of angle 9 is 85° which angle must also measure 85°?

What is the approximate circumference of the circle shown below?

Adam drew two same size rectangles and divided them into the same number of equal parts. he shaded 1/3 of one rectangle and 1/4 of the other rectangle. what is the least number of parts into which both rectangles could be divided into?