8. Sabrina uses 9 inches of ribbon to make one bow. Sabrina buys 7 packets
of ribbon. Each packet of ribbon is 4.5 yards long. How many bows can
Sabrina make with the 7 packets of ribbon?
A 18
B. 126
C. 216
D. 283

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?