Determine the range of the following graph:

Eileen purchased 3.4 pounds of apples at the total cost of $19.72. if she purchases 6.2 pounds of apples at this store, how much would it cost?

In the polynomial below, what number should replace the question mark to produce a difference of squares? x2 + ? x - 36

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.