The monthly cost in dollars of a long distance phone plan is a linear function of the total collie time in minutes the monthly cost for 31 minutes of calls is $16.19 and the monthly cost for 59 minutes is $19.27 what is the monthly cost for 57 minutes of calls

Divide. write in the simplest form. 4 1/6 divided by 10

2people are trying different phones to see which one has the better talk time. chatlong has an average of 18 hours with a standard deviation of 2 hours and talk-a-lot has an average of 20 hours with a standard deviation of 3. the two people who tested their phones both got 20 hours of use on their phones. for the z-scores i got 1 for the chatlong company and 0 for talk-a-lot. what is the percentile for each z-score?

The revenue each season from tickets at the theme park is represented by t(c)=5x. the cost to pay the employees each season is represented by r(x)=(1.5)^x. examine the graph of the combined function for total profit and estimate the profit after four seasons