Which expression is equivalent to 7.25 - 3(4 - 2x) - 10.75x?
a 16.25 - 18.25x
b 7.25 - 16.75x
c -7.75 - 12.25x
d -4.75 - 4.75x

Which of the following is the best first step in solving the equation below? 4+2㏒³x=17

You buy a veido game for $60 and the sales tax is 8% what is the total cost for the game including the sales tax

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?