How do i find domain and range

Fiona races bmx around a circular dirt course. if the radius of the course is 70 meters, what is the total distance fiona covers in two laps of the race? a. about 30,772 meters b. about 15,386 meters c. about 879.2 meters d. about 439.6 meters e. about 219.8 meters23 points hurry

There are 93 calories in a small candy bar how many calories are ther in a half dozen small candy bars?

What graph represents an even function