Answer:
X is the GPA
Y is the Salary
Standard deviation of X is 0.4
Standard deviation of Y is 8500
E(X)=2.9
E(Y)=47200
We are given that The correlation between the two variables was r = 0.72
a)


So, slope = 15300
Intercept = 2830
So, equation : 
b) Your brother just graduated from that college with a GPA of 3.30. He tells you that based on this model the residual for his pay is -$1880. What salary is he earning?

Observed salary = Residual + predicted = -1860+53320 = 51440
c)) What proportion of the variation in salaries is explained by variation in GPA?
The proportion of the variation in salaries is explained by variation in GPA = 
Well it depends if it's a leap year. If it isn't a leap year there are 28 days and if we are in a leap year than there are 29 days in February.
Hope that helped :)
6, because 3/4=6/8 so 6 kids ate it if each has 1/8
Answer:
7.2 in² or 7.2 inches squared
Step-by-step explanation:
Area is a measure of how much space there is on a flat surface.
To find the area, just multiply the length and width of the figure.
2 × 3.6 is 7.2
When you find the area, you have to square it.
So, the answer is 7.2 in², or 7.2 inches squared