If the surface area of this box was 680in?, what
would the value of h have to be?

Me complete this proof! prove that a quadrilateral is a square. me with the steps for this proof.

Donald has x twenty-dollar bills and 11 ten-dollar bill. how much money does donald have? write your answer as an expression.

In 2009, there were 1570 bears in a wildlife refuge. in 2010, the population had increased to approximately 1884 bears. if this trend continues and the bear population is increasing exponentially, how many bears will there be in 2018?