Use an estimate to decide if the answer is reasonable. If the answer is not reasonable, find the actual quotient.

Seven thousand three hundred forty-one divided by nine equals six hundred twenty-one remainder two.
The answer is reasonable.
No; 815 R6
No; 815 R5
No; 815 R4

Asmall (but heavy) particle placed in a glass of water will follow a zigzag motion because the particle will bounce off of the water molecules it meets. this is called brownian motion. a physicist simulates this on a computer, by varying the distance a particle can travel (called the mean free length), on average, before it collides with a water molecule and assigning the change in motion to be one of 8 directions, each with a similar probability. by running the simulated particle (with the same mean free length) many times she determines that it should take 15 seconds, on average, for the particle to fall to the bottom, with a standard deviation of 1.5 seconds. next she lets a real particle fall through a glass of water and finds that it took 18 seconds. what does she conclude, and why?

How many $20 bills do you need to have to make $280

In order to be invited to tutoring or extension activities a students performance 20 point higher or lower than average for the