Pre algebra 45.3n = -181.2 what is n?

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

Acompany made a profit of 75000 over a period of 6 years on an initial investment of 15000 what is the annual roi

If on=8x-8,lm=7x+4,nm=x-5,and ol=3y-6