Answer:
1+6v
Step-by-step explanation:
add 5v and v
Just gonna give you the answer:
The constant variation is 1/2
a. The marginal densities

and

b. This can be obtained by integrating the joint density over [0.25, 1] x [0.5, 1]:

8 is (7+4)/(7+4+5+9) = 11/25 = 0.44
9 is 5/(5+7) = 5/12 = 0.417 so I'm sorry I can't help with that one
Take 47,000/12
12 months in a year = $3917
$3917.00 is what he would take home every month before taxes of course.