I am the seventh multiple of the LCM of 15 and 20. What number am I?

What is the area of the trapezoid shown ?

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?

Your food costs are $5,500. your total food sales are $11,000. what percent of your food sales do the food costs represent?