Sue jones is insured for bodily injury in the amount of 10/20. she is at fault in an accident in which albert smith is injured. also injured in the accident is a pedestrian, sam dickson. albert's medical expenses total $12,000, sam's come to $8,000. how much will the insurance pay? a. for albert b. for sam c. total

For this case, what you should know is that Sue Jones insurance covers half of the expenses. Equivalently, her insurance covers:
 10/20 = 1/2 = 0.5
 Therefore, we have then that
 a. for Albert 
 0.5 * (12000) = $ 6000
 b. for Sam 
 0.5 * (8000) = $ 4000
 c. total
 The sum of the results of parts a and b
 $ 6000 + $ 4000 = $ 10,000
 answer
 $ 6000
 $ 4000
 $ 10,000

Sorry can't answer that question