Cullen bought 7 screwdrivers at a cost of $1.20 each. He gave the cashier a ten dollar bill to pay for the screwdrivers. How much change did he receive?

According to the normal model, what percent of receivers would you expect to gain fewer yards than 2 standard deviations below the mean number of yards

Answer this question, only if you know the answer. 30 points and brainliest!

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?