The graph of the derivative, f '(x) is shown below. On what interval is the graph of f (x) decreasing?

Kendra had twice as much money as kareem. kendra later spent $8 and kareem earned $6. by then, the two had the same amount of money. how much money did each have originally?

The moats separating people from the animals are 5 m wide for lions and 4 m wide for the elephants. if the lion’s moat is 4 m deep, how deep should the elephants’ moat be?

If t8 = 4 and t12 = −2, find the first three terms of the arithmetic sequence.