Aterials zments
There are 531 identical plastic chips numbered 1 through 531 in a box
What is the probability of reaching into the box and randomly drawing a chip number that is yester than 1537 Express your
answer as a simplified fraction or a decimal rounded to four dedmal places,

Awrestling tournament begins with 128 competitors. in the first round, each competitor has 1 match against another wrestler. the winner of each match moves on to the next round until there is a winner. write a sequence in which the terms represent the number of players still in the tournament at the end of each round. describe the sequence? how many rounds are in the tournament?

If a(0,0,0) and b(2,2,2) are points in coordinate space, how many paths are there from a to b that move from one lattice point to another in the positive x-,y- or z- direction?

In the rectangle below ac=30 units what is de