Answer:
one property of log is that if the log expressions have the same base (in this case, 2), then you can multiply the added logs.
The answer would then be D
Answer:
about an hour and 42 minutes
Step-by-step explanation:
Time=Distance/Speed
In order to answer, I would first need to know Jana's speed, not that she biked at a constant rate.
Double the first equation: 4x+14y=-2 and subtract the second: 17y=17, so y=1. 2x=-7y-1=-7-1=-8, so x=-8/2=-4.
The answer is x=-4 and y=1.