Tyrone took a total of 24 pages of notes during 8 hours of class. In all, how many hours will
Tyrone have to spend in class before he will have a total of 33 pages of notes in his
notebook? Assume the relationship is directly proportional.
hours

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?

Twelve less than a number is at most 20

Susie wants to take her friend out for lunch.she wants to spend $9.75 each person. how much will she spend in all.