Out of 40 coins, 16 are dimes. half of the remaining coins are quarters and the rest are pennies and nickels. there are 2 nickels for every penny. how many pennies are there?

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.

David is spreading mulch on a triangular area of his flower bed. the coordinates of the vertices of the area are (1, 3), (9, 3), and (4, 6). what is the area of the triangle if each square has an area of 3 square feet?

Write an equation of the line that passes through 9,2 and is parallel to the line y=5/3x+9