Answer: 
Step-by-step explanation:
Given
Inside radius of figure 
Outside radius of figure 
Area of outside region is 
Area of inside region 
Area of shaded region 
Probability that point lies inside the shaded region is

They would cost the same amount by day 2. day 1 for car a is $45.50. day 1 for car b is $40. day 2 for car a is $60. day 2 for car b is also $60.
The answers to the questions
You just have to multiply straight across. Multiply the numerators for the new numerator, and the denominators for the new denominator.
5*3=15
4*8=32
15/32 is the answer (b).