Scientists use the formula to calculate the speed (s) 9.8d of the tsunami (in meters per second ) based on the depth (d) of the ocean (in meters). the 9.8 refers to the acceleration of the tsunami due to gravity, in meters per second squared. what is the depth of the ocean (to the nearest meter) if the tsunami is moving at a speed of 320 meters per second?

Sam is a waiter at a local restaurant where he earns wages of $5 per hour sam figures that he also eams about $3 in tips for each person he serves sam works 6 hours on a particular day. if n represents the number of people sam serves that day, which of the following functions could sam use to figure ehis total earings for the do o a. en) = 30 o b. en) = 5n+ 18