April, betty, carmen, and donna are running in a race. april is winning. carmen is 12 meters behind april. betty is 2 meters ahead of carmen. donna is 14 meters behind april. how many meters ahead of donna is betty? (do not include units in your answer.)

Simplify. (-2)^-3 a. -8 b. -1/8 c. 1/8 d. 8

What is the approximate value of  q  in the equation below? –1.613–1.5220.5853.079

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?