I’ve attached a sketch of what it would look like
k = 
using the ' laws of logarithms '
log x - log y = log (
)
logx = logy ↔ x = y
logk - log(k - 2) = log5
log (
=log 5
= 5
5(k - 2) = k
5k - 10 = k
4k = 10 ⇒ k =
= 
Okay well the way I do it is like this. When ever the next hour hits 10 minutes that is one hour then add the minutes left. So from 7:10a.m. to 6:10p.m. is 11 hours. Now the rest of the minutes. 6:35 -6:10=:25. So she has been away from the house for 11 hours and 25 minutes
Don’t know I’m just answering thus because it doesn’t let me ask a question unless I answer a random question. Sorry
30 the answer is 30 just times it by 2