The ratio of pens to pencils is 5 to 4. If there are 25 pencils, how many pens are there?

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

Aportion of a line bounded by two points is defined as

Combine the information in the problem and the chart using the average balance method to solve the problem.