Answer:
6^-13
Step-by-step explanation:
The rule for multiplying numbers with the same base but different exponents is a^b*a^c=a^(b+c), so in this case we have 6^(-4+(-9)) which is 6^-13
Hope this helped!
D) every hour, the number of litera decreases by 0.25 liter
Here is the answer from SparkNotes
http://www.sparknotes.com/math/algebra2/operationsonfunctions/section3.rhtml
The simplified fraction is 1 6\14 One and six fourteenths or 1 2\7 one and two sevenths
