Kendra is planning to ride her bicycle on a popular biking path that is 84 miles long. She plans to average 7 miles per hour. To find how long the trip will take, solve the distance formula d = rt for t. Then substitute to find the time it will take her for the trip. 7 hours
13 hours
11 hours
12 hours

12 hours

Step-by-step explanation:

If we plug in the rate, 7 mph, and the total distance, 84, into the formula , you would get that 84 = 7t since the time is unknown. Next, we can divide both sides by 7 to get that t = 84/7, and 84/7 is 12, meaning that it will take Kendra 12 hours for the trip.

you didn't post any answer choices, so its not 100% clear what your teacher is looking for

however, log(15/7) is equivalent to log(15) - log(7)

i'm using the rule log(x/y) = log(x) - log(y)

b

step-by-step explanation: