Write an equation of the parabola in vertex form.

An equation of the parabola is y=

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

How to find the exponential function y=ca^x, with points (1,2) and (2,1)

15m is what percent of 60m; 3m; 30m; 1.5 km? the last one is km not m