So umm ahh I won't tell answer but I'll teach <u>HOW</u> to solve it :>
Sooo........
Just ask your teacher that is the best best best helpful hint (IT IS ACTUALLY)
Answer:
speed of light movement when boat is 1 mile from light house is 0.029 miles/sec
Step-by-step explanation:
Given data:
distance of boat from light house is 2 miles
rate of turning of light is 100 degree per minute
w = 100 degree/min

w = 1.745 rad/min
w = 0.0290 rad/sec
speed of movement of light 

thus speed of light movement when boat is 1 mile from light house is 0.029 miles/sec
Answer:
B) The mean increases by $2.42
Btw. My answer was $2.40… B was the closest