A jet left Rome and flew north at an average speed of 264 km/h. An Air Force
plane left six hours later and flew in the
opposite direction with an average speed
of 452 km/h. Find the number of hours
the Air Force plane needs to fly before the
planes are 3016 km apart.

2y= 3 2 x−2 y = − 1 3 x + 1 y=− 3 1 x+1

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

Which expression is a perfect cube? a. x8 b. y24 c. m28 d. x64