One circle has a circumference of 12 pi . another circle has a circumference of 32 pi . what is the ratio of the radius of the smaller circle to the radius of the larger circle?

For each proportion find the unknown number x 1/5/8=×/15

Julius sold five times as many computers as sam sold last year. in total, they sold 78 computers. how many computers did julius sell?

(05.08a)triangle abc is transformed to similar triangle a′b′c′ below: a coordinate plane is shown. triangle abc has vertices a at 2 comma 6, b at 2 comma 4, and c at 4 comma 4. triangle a prime b prime c prime has vertices a prime at 1 comma 3, b prime at 1 comma 2, and c prime at 2 comma 2. what is the scale factor of dilation? 1 over 2 1 over 3 1 over 4 1 over 5