HELP PLEASE! I tried dividing and multiplying but still have not got the correct answer. How do I go about solving this problem and where do I start?

I dont have enough time to answer, but heres how to caculate gas mileage.

1. Get the miles traveled from the trip odometer, or subtract the original odometer reading from the new one.

2. Divide the miles traveled by the amount of gallons it took to refill the tank. The result will be your car’s average miles per gallon yield for that driving period.

3.Here’s the formula: miles driven gallons used = mpg

since both sides equal, there are infinitely many olutions.

step-by-step explanation:

the original amount doesn't ''re just looking for the time it takes for 1/2 of the substance to we have

(1/2) =)     take the ln   of both sides

ln (1/2)   = )   and we can write

ln(1/2) = ) lne     and lne   = 1     so we have

ln(1/2) = -.1092t     divide both sides by -.1092

t = ln(1/2)/-.1092 = about 6.347 days = about 6.3 days (rounded)