ank's loan officer rates applicants for credit. The ratings are normally distributed with a mean of 200and a standard deviation of 50. If an applicant is randomly selected, find the probability of a rating that isat least 220

Each month, a shopkeeper spends 5x + 14 dollars on rent and electricity. if he spends 3x−5 dollars on rent, how much does he spend on electricity? for which value(s) of x is the amount the shopkeeper spends on electricity less than $100? explain how you found the value(s).