There is a bag with only red marbles and blue marbles. The probability of randomly choosing a blue marble is 1 12 . There are 84 marbles in total in the bag and each is equally likely to be chosen. Work out how many red marbles there must be.

The water has been on the stove y=9.5x+62.1 after how many minutes will the tempature be 138.1 f

The probability that a college student belongs to a health club is 0.3. the probability that a college student lives off-campus is 0.4. the probability that a college student belongs to a health club and lives off-campus is 0.12. find the probability that a college student belongs to a health club or lives off-campus. tip: p(a or b) = p(a) + p(b) - p(a and b) 0.54 0.58 0.70 0.82

If f(x) = 4x – 3 and g(x) = 8x + 2, find each function value a.f[g(3)] b.g[f(5)] c.g{f[g(-4)]}