Teesha is in the chess club. There are 31 students in the club. Four of them will be picked at random to attend an awards banquet. What is the probability that Teesha will not be randomly chosen to attend the banquet?

a. 31/27

b. 27/31

c. 31/4

d. 4/31

What is 0.003 of 1/10 as much as

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Luke jogged a total of 56.5 miles last week. If Luke jogged the same distance, d, each day for 3 days and half that distance on each of the remaining days, write an algebraic equation that can be used to determine how many miles he jogged each day.

Purple paint is made with a 16:3:1 ratio of white paint:blue paint:red paint. How much white paint, in gallons, is needed in order to make one gallon of purple paint? Express your answer as a common fraction.

Round 41,003 to the nearest hundred

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