The area of a circle is 81 ft 2 . What is the π circumference? Leave in terms of Pi.

Look at the following graph of the given equation. determine whether the equation is a function. explain why or why not.

Which is a reasonable estimate of the amount of water in a small, inflatable pool used by children?

Phyllis and chen are saving money to go to a football game. each friend starts with some money and saves a specific amount each week. phyllis made a graph to show the total she has saved at the end of each week. chen wrote an equation to show the total, y, he has saved at the end of each week, x. y = 15x + 15 compare the amount that each friend has when both friends start saving. select the correct answer from the drop-down menu to complete the statement. phyllis starts with $ and chen starts with $