What is the difference between a function and a relation

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

Valentina is subtracting from . she finds the lcd to be 15y2. what is valentina's next step?

Which statements are true about additional information for proving that the triangles are congruent check all that apply