At a gas station where people can pay in cash or by credit card, 20% of people pay by credit card and 80% of people pay cash. a gallon of gas costs $4.00 if paid by card and $3.50 if paid by cash. what is the expected revenue for a gallon of gas sold at this station?

Asample of 200 rom computer chips was selected on each of 30 consecutive days, and the number of nonconforming chips on each day was as follows: the data has been given so that it can be copied into r as a vector. non. conforming = c(10, 15, 21, 19, 34, 16, 5, 24, 8, 21, 32, 14, 14, 19, 18, 20, 12, 23, 10, 19, 20, 18, 13, 26, 33, 14, 12, 21, 12, 27) #construct a p chart by using the following code. you will need to enter your values for pbar, lcl and ucl. pbar = lcl = ucl = plot(non. conforming/200, ylim = c(0,.5)) abline(h = pbar, lty = 2) abline(h = lcl, lty = 3) abline(h = ucl, lty = 3)

Let y = and z = . translate "z less than y" into an algebraic expression, and solve it.

Solve the equation. show your math work step by step. 5x −14=−34