There are 20 seventh graders and 15 eighth graders in a club. a club president will be chosen at random. compare the probabilities of choosing a seventh grader or an eighth grader.

All per-unit concepts rely on ratios, meaning, to provide a type of measurement

What is the value of x in the diagram below?

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 $