You plan to drive north from city a to town b and then continue north to city c. the distance between city a and town b is 39 miles, and the distance between town b and city is 99 miles. assuming you follow a straight driving path, after how many miles of driving will you reach the midpoint between city a and city c? if you drive an average of 46 mi/h how long will it take you to drive from city a to city c?

Factor the polynomial by its greatest common monomial factor.

Which equation shows y= 3 4 x− 5 2 in standard form? a 4x−3y=10 b 3x−4y=10 c 3x−4y=−10 d 4x−3y=−10

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?