1. Dean Morimoto spends 1 hour 20 minutes get- ting ready for work each day. After leaving his
house he walks 10 minutes to a restaurant.
There he spends 30 minutes eating breakfast.
Then he walks 5 minutes to a bus stop where
he catches a bus for a 25-minute ride to work.
What time must he get up to reach his office
by 9 A. M.?

What properties allow transformation to be used as a problem solving tool

2people are trying different phones to see which one has the better talk time. chatlong has an average of 18 hours with a standard deviation of 2 hours and talk-a-lot has an average of 20 hours with a standard deviation of 3. the two people who tested their phones both got 20 hours of use on their phones. for the z-scores i got 1 for the chatlong company and 0 for talk-a-lot. what is the percentile for each z-score?

Solve the formula ax+ by = c for x.