Three times a number increased by twice a second number is 20. The second number is one less than four times the first. Find the two numbers.

Quadrilateral abcd in the figure below represents a scaled-down model of a walkway around a historic site. quadrilateral efgh represents the actual walkway. abcd is similar to efgh. what is the total length, in feet of the actual walkway?

Ftara spends $219 a month for her car payment and she makes $3,200 a month, what percent of her monthly income is spent on her car payment?

What is the similarity ratio of a cube with volume 729m^3 to a cube with volume 3375 m^3