Granny Smith, who was leaving Montreal, boarded a train at four minutes past the hour. After boarding, she stuck her head out of the window and shouted to the ticket man, "How far are we from Toronto?" "All trains take five hours either way," he replied. "How many trains shall I meet on the way?" asked Granny. "A train leaves Toronto at five minutes past the hour, every hour," Answered the ticket men. How many trains will Granny Smith meet?

Describe all the numbers that when rounded to the nearest thousand are 645,000

y=2x−1 5x−4y=1 is (1,1)(1,1) a solution of the system?

The table below shows the approximate masses of a dust particle and a grain of pollen. dust particle 0.000000778 g grain of pollen 0.00000000155 g the mass of a dust particle can be estimated and written in the form a × 10^b, where a = 8 and b = the mass of a grain of pollen can be estimated and written in the form a × 10^b, where a = 2 and b = based on the estimates, the mass of a dust particle is approximately blank times larger than the mass of a grain of pollen.