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You paid 28.00 for 8 gallons of gasoline. how much would you pay for 15 gallons of gasoline?

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.

Which fraction represents the ratio 35 : 42 in simplest form