A plumber charges $50 to visit a house plus $80 for every hour of work. Define a variable and write an expression to represent the total cost of hiring a plumber.

What is 96 divided by 7,488mark as brainliest

The graph below represents the number of dolphins in a dolphin sanctuary. select all the key features of this function.

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?