2 pictures 3 questions easy simple and thank you

1.two more than the quotient of a number and 6 is equal to 7 use the c for the unknown number translate the sentence into an equation

He weights of 2-pound bags of best dog food are approximately normally distributed with a given mean  and standard deviation  according to the empirical rule, what percentage of the bags will have weights within 3 standard deviations of the mean? 47.5%68%95%99.7%

Match the one-to-one functions with their inverse functions.