Find [f ○ g](x) if g(x) = x + 1 and f(x) = 2x^2 - 5x + 8
a 3x2 - 4
b 3x2 ­- 8x + 16
c 3x2 ­- 24x + 48
d 3x2 ­- 48

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Weekly wages at a certain factory are normally distributed with a mean of $400 and a standard deviation of $50. find the probability that a worker selected at random makes between $450 and $500

Jackson earns $25 per hour as a tutor at the college library. he set a weekly spending budget of $130 each week and puts the remaining money in his savings account. how many hours must he work this week to have at least an extra $50 to put in his savings account