How many diagonals are there in a quadrilateral? in a pentagon? in a hexagon? in an octagon? explain your answer thoroughly. answer right away if you know the answer !

Aswimming pool is a rectangle with semicircles on the end. the rectangle is 12 meters wide and 30 meters long. the diameter and width of the swimming pool are equal. sketch and label an overhead diagram of the swimming pool. find the area of the swimming pool floor.

The table shows the balance of a money market account over time. write a function that represents the balance y(in dollars) after t years.

Amanda went into the grocery business starting with five stores. after one year, she opened two more stores. after two years, she opened two more stores than the previous year. if amanda expands her grocery business following the same pattern, which of the following graphs represents the number of stores she will own over time?