Sorry the picture sucks but pls : )

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?

Events a and b are independent. the probability of a occurring is 2/5. the probability of b occurring is 1/4. what is p(a and b)?

On ryan's last social studies test there were two types of questions true/false worth 3 points each and multiple choice questions worth 4 points each