Part a:
write an algebraic expression that can be used to find a customer's total cost given that, c=crepes, s= croissants, d= danish and j= juice

part b:
find the total if the football coach buys 8 crepes, 5 croissants and 4 juice drinks

Assume that adults have iq scores that are normally distributed with a mean of mu equals 100 and a standard deviation sigma equals 20. find the probability that a randomly selected adult has an iq between 80 and 120.assume that adults have iq scores that are normally distributed with a mean of mu equals 100 and a standard deviation sigma equals 20. find the probability that a randomly selected adult has an iq between 80 and 120.