Aused-car costs $5,000. you figure you can get 4 years out of it. you drive 10,000 miles per year. your car insurance costs $1,200 per year. you figure you'll spend $400 per year on maintenance. gas costs $4 per gallon, and the car gets 25 miles per gallon. what will your average cost (all costs included) per mile be over the 4 years?

Below are the choices that can be found elsewhere. 

a)$0.20 per mile 
b)$0.25 per mile 
c)$0.40 per mile 
d)$0.445 per mile 

Cost of car = $5000 

Maintenance for 4 years = $1600 

Insurance for 4 years = $4800 

Fuel cost for 4 years = 40,000 /25 = 1600 gallons = $ 6400 

ADD ALL = $17800 

cost per mile = 17800/40,000 = 0.445 $ per mile 

ANSWER is d

the law of definite proportions states samples of a compound will always contain the same proportion of elements by mass. in other words, a given compound will always contain the same elements in the same proportions by mass.the law of multiple proportions states when two elements combine with each other to form more than one compound, then the weights of one element that combine with a fixed weight of the other are in a ratio of small whole numbers.