Benjamin finished his triathlon in 12.44 hours. during the race, he drank 460.28 fluid ounces of liquid. how many fluid ounces did he drink per hour?

What is the sum of these mixed numbers 2 1/8 + 4 3/8

James was playing a game with his friends. he won 35 points. then he lost 15, lost 40 and won 55. how did he come out

Aspacecraft can attain a stable orbit 300 kilometers above earth if it reaches a velocity of 7.7 kilometers per second. the formula for a rocket's maximum velocity v in kilometers per second is vequalsminus0.0098tplusc ln upper r, where t is the firing time in seconds, c is the velocity of the exhaust in kilometers per second, and r is the ratio of the mass of the rocket filled with fuel to the mass of the rocket without fuel. find the velocity of a spacecraft whose booster rocket has a mass ratio of 20, an exhaust velocity of 2.1 km/s, and a firing time of 15 s. can the spacecraft achieve a stable orbit 300 km above earth?