Question 1
Use the given information to answer the question.
The number N, in millions of Americans of age x with arthritis, is estimated with the following graph.

Give the age(s) at which there are 2 million people with arthritis.
◦ 46
◦ 45 and 65
◦ 35 and 80
◦ 46 and 80
Question 2
Use the given information to answer the question.
The number N, in millions of Americans of age x with arthritis, is estimated with the following graph.

Approximately how many 40-year-olds and 55-year-olds combined have arthritis?
◦ 4,100,000
◦ 400,000
◦ 3,600,000
◦ 31,400,000