Answer:
angle 7
Step-by-step explanation:
The quotient means you are going to divide. So take 27006 and divide by 42. your answer should be 643.
D
He washes 60 sq ft in 1/4 of an hour. Multiply 60 by 4 and you get 240 per hour
Answer:
a. 
b. The symbol y-bar represents the average price of hotels in the area
Step-by-step explanation:
a. The regression line equation is given by:

Where Alpha represents the slope, Beta represents the intercept with the Y axis, and epsilon represents the random component of the model. Thus,
y
Obtaining:
.
b. In a simple linear regression model the value of y-bar represents the average of all values of y observed. Thus, since y represents the prices of the hotels, then y-bar is the average price of hotels in the area.