Whcih of the following will form the composite function g(f(x)) shown below? g(f(x))= 3(x+1)^2
a. f(x)=x+1 and g(x)=3x^2
b. f(x)=3x+1 and g(x)=x^2
c. f(x)=^2 and g(x) = 3x+1
d. f(x)=3x^2 and g(x)= 1

You have $600,000 saved for retirement. your account earns 5.5% interest. how much, to the nearest dollar, will you be able to pull out each month, if you want to be able to take withdrawals for 20 years?

The number of chocolate chips in an 18-ounce bag of chocolate chip cookies is approximately normally distributed with a mean of 1252 chips and standard deviation 129 chips. (a) what is the probability that a randomly selected bag contains between 1100 and 1500 chocolate chips, inclusive? (b) what is the probability that a randomly selected bag contains fewer than 1125 chocolate chips? (c) what proportion of bags contains more than 1225 chocolate chips? (d) what is the percentile rank of a bag that contains 1425 chocolate chips?

Determine the number of girls in a math class with 87 boys if there are 25 girls for every 75 boys