Suppose the radius of a circle is 8 What is its circumference?

Roger and natalie travel in similar cars. roger's car drives the two miles to school in 7.5 minutes. natalie drives the same distance in the opposite direction but in only 6.5 minutes. what is true of their velocities?

Which statement accurately explains whether a reflection over the x-axis and a 180° rotation would map figure acb onto itself?

Find dy/dx using implicit differentiation ln(20+e^xy)=y