Acheetah can run at top speed for only about 30 seconds. if an antelope is too far away for a cheetah to catch it in 20 seconds, the antelope is probably safe

The party planning committee has to determine the number of tables needed for an upcoming event. if a square table can fit 8 people and a round table can fit 6 people, the equation 150 = 8x + 6y represents the number of each type of table needed for 150 people.