You hire a plumber to repair a leak in your home. the plumber charges a flat "show-up" fee, plus an additional cost of $50 per hour. after 4 hours, he charged you$275. write an equation that represents the total cost as a function of the number of hours the plumber is at your house. i no idea what im doing and i need to study for an upcoming test

In what form is the following linear equation written y=9x+2

Issof claims that the scale factor is 1/2. which statement about his claim is correct

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?