In the coordinate plane, the three vertices of rectangle MNOP are M(0, 0), N(0, c), and P(d, 0) respectively. What are the coordinates of the vertex O?

What is the factored form of the following expressions? d^2 – 13d + 36

Two cars which are 40 miles apart start moving simultaneously in the same direction with constant speeds. if the speed of the car which is behind is 56 mph and the speed of the other car is 48 mph, how many hours will it take for the car which is behind to catch up the car ahead of it?

What is the 17th term in the arithmetic sequence in which a6 is 101 and a9 is 83