A cubical box of dimensions 4 m×4 m×4 m is to be made using cardboard. How much will the box cost if the cardboard costs $6 per m2?

2y= 3 2 x−2 y = − 1 3 x + 1 y=− 3 1 x+1

How many 2/5s are in 1 and 1/2 plz someone me right now

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?