Answer:
Quality Plumbing charges more per hour.
In the graph, you can see that it would cost $150 for their work plus $100 per hour based on the slope of the line.
A Plus Plumbing charges $140 for their work plus $60 per hour.
Answer:
Option B. The standard deviation of the number of floors per city is nothing.
Step-by-step explanation:
The standard deviation of a data set is the statistic that measures the deviance or dispersion of the data from the relative mean. In other words, it is is a measure of how spread the numbers are. The standard deviation is given by the following formula:

In this case, it is the deviation of the number of floors in the building in the city.
Green Apples: $11.92
Red Apples: $7.45
In total, Brandon will spend $19.37.