Two cars leave st. louis at the same time and travel south on the same interstate. one car travels at a constant speed of 58 miles per hour and the other travels at a constant speed of 63 miles per hour. in how many hours will the cars be 40 miles apart?

The base of a triangle exceeds the height by 9 inches. if the area is 180 square inches, find the length of the base and the height of the triangle.

Four individuals pool money together to start a new business and agree to split the profits equally. n invests $6,000, x invests $2,000, y invests $8,000 and z invests $4,000. if the profits for the first month were $100,000, y receives than if the profits were divided in proportion to how much they invested.

Over which interval is the graph of f(x) = x2 + 5x + 6 increasing?