The graph of which function is decreasing over the interval (4, )?
f(x) = (x + 4)2 + 4
f(x) = -(x + 4)2 + 4
f(x) = (x - 4)2 - 4
f(x) = -(x - 4)2 - 4

The graph below represents the number of dolphins in a dolphin sanctuary. select all the key features of this function.

The length of a rectangle plus its width is 25 cm. the area is 156 square cm. what are the length and width of the rectangle? separate the answers with a comma.

The first floor of marcus’ house is 1,440 square feet. he will cover 1,033 square feet with wood and the rest with tile. a box of tiles will cover 11 square feet. how many boxes of tile does marcus need to buy to cover the floor?