Because of heavy traffic, a bus took 30 minutes to cover a distance of 20 city blocks. how many minutes per city block did the bus move?

The ratio of two numbers is 5 to 4. the sum of the numbers is 99. what number is the greater of the two numbers?

Alex drew a circle with right triangle prq inscribed in it, as shown below: the figure shows a circle with points p, q, and r on it forming an inscribed triangle. side pq is a chord through the center and angle r is a right angle. arc qr measures 80 degrees.

16 more than the product of 5 and p