Graph the linear equation y= -1/2x-1

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

The angle of a triangle are given as 6x,(x-3), and (3x+7). find x then find the measures of the angles

Multiply. write your answer in simplest form. 3/8 x 5/7