Eric’s bicycle tires have a 30-inch diameter and Maggie’s bicycle tires have a 24-inch diameter. How much farther do Eric’s tires travel compared to Maggie after 9 complete revolutions? Use pi= 3.14 . Enter your answer correct to one decimal place. (giving brainliest)

Two parallel lines are crossed by a transversal. what is the value of x? x = 40 x = 70 x = 110 x = 130

If f(x)=-x^2+6x-1 and g(x)=3x^2-4x-1,find(f+g)(x)

Apinhole camera is made out of a light-tight box with a piece of film attached to one side and pinhole on the opposite side. the optimum diameter d(in millimeters) of the pinhole can be modeled by d=1.9[ (5.5 x 10^-4) l) ] ^1/2, where l is the length of the camera box (in millimeters). what is the optimum diameter for a pinhole camera if the camera box has a length of 10 centimeters