A new highway was built outside of Tri Town to relieve traffic on Route 1. How many miles are saved by traveling on the new highway to get from point A to point B?
B
New Highway
5 miles
Tri Town
Route 1
12 miles
O A 1 mile
B. 4 miles
C 13 miles
D. 30 miles

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?