Idon't get this does anybody get this? 14+ x=46; x=32 what the heck i'm stuck on my homework

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 perimeter of a triangle is 69 cm. the first is 5 cm shorter than the second side. the third side is twice as long the first side. find the length of each side

What is the perimeter of trapezoid jklm? + units 2 + + units 9 + units 9 + + units