Answer:
There is a significant linear correlation between the two variables.
Step-by-step explanation:
Given that part time weekly earnings are
x y
10 93
15 171
20 204
20 156
35 261
Correlation 0.9199
H0: r=correlatin =0
Ha: r ≠0
(two tailed test)
r difference = 0.9199
t = 
p value < 0.0001
Since p <0.05 we reject null hypothesis
There is a significant linear correlation between the two variables.
1 yard= 3 feet
_yard=720 feet
720 divide 3= 240
So it should be 240 yard
So it is incorrect
AD = √(19^2 + 3^2)
AD = √370
AD = 19.2
answer
C. 19.2