Can you help a girl out? A graph titled Weight Loss Plan has weekly aerobic activity (hours) on the x-axis, and monthly weight loss (pounds) on the y-axis. A trend line goes through points (1.5, 2) and (3.5, 5).

Use the trend line for the data in the scatterplot to make a prediction. About how many pounds were lost per month with 4 hours of weekly aerobic activity?
3 pounds
4.5 pounds
6 pounds
7.5 pounds

How many days was the temperature above 90 degrees?

The average number of vehicles waiting in line to enter a parking lot can be modeled by the function f left parenthesis x right x squared over 2 left parenthesis 1 minus x right parenthesis endfraction , where x is a number between 0 and 1 known as the traffic intensity. find the rate of change of the number of vehicles waiting with respect to the traffic intensity for the intensities (a) xequals0.3 and (b) xequals0.6.

Sanya noticed that the temperature was falling at a steady rate of 1.4 degrees every hour from the time that she first checked her outdoor thermometer. by 6 a.m., the temperature had fallen 21 degrees. which expression can you use to find how many hours earlier she had first checked the thermometer?