What is the combined length of all the buttons longer than 1 inch?

Match the term on the left with its image or description on the right. match term definition diameter a) circle a and a line segment connecting points b and c which are on the circle. circumference b) circle a and a line segment connecting points b and c which are on the circle. radius c) a piece of the circumference of a circle secant d) two circles that share the same center. concentric circles e) the distance around a circle arc f) a segment between two points on a circle that passes through its center

Given f(x)= 9x+1 and g(x)=x^3, choose the expression (f*g)(x)

What are the first 4 terms in the multiplication pattern given by the formula 2×4n