The yellow submarine was at sea level when the passengers boarded. The journey began with a descent of 40 meters. After examinin
g the sea life, they rose 30 meters. Zach thought he saw an octopus, below. They dove again, a distance of 25 meters to watch the eight ‘legged’ sea creature. a) Write an expression to describe the journey of the yellow submarine. _________________________________
b) At what depth did they stop to look at the octopus? ______________________
2 years is the same as 24 months, so the equation would be: 685 = 24x + 85, where x is the monthly fee. 600 = 24x 600/24 = x x = 25 The monthly fee is $25.
