Interest rates of 5%,6%,8%, earned on investments of $13,000,$12,000,$4,000. calculate total amount of interest earned

One card is dealt from a 52 card deck. find the probability that the dealt card is a 4 or a black 7

Ill mark the brainliest if you me with the these three questions 7,8,9

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?