What’s the answer to this question

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

You use technology ans find a sum of 6.712e-8. write this sum in standard form

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 less than 132. the probability that a randomly selected adult has an iq less than 132 is?