Asurvey of 2,000 doctors showed that an average of 3 out of 5 doctors use brand x aspirin. how many doctors use brand x aspirin? (hint: solve for x) show your work

1yd 1 ft = 1 1/12 1 1/3 1 1/2 1 1/6

You are standing next to a really big circular lake. you want to measure the diameter of the lake, but you don't want to have to swim across with a measuring tape! you decide to walk around the perimeter of the lake and measure its circumference, and find that it's 400\pi\text{ m}400? m. what is the diameter dd of the lake?

Which of the following is an example of a rational number? a. π b. √ 9 c. √ 8 d. 3.8362319