The surface area of a rectangular prism is found using the formula sa = 2(lw + lh + wh), where l is length, w is width, and h is height. what is the surface area (in square meters) of a rectangular prism with length 5 m, width 12 m, and height 6 m?

Which number line correctly shows 0.8 + 0.3?

Fast! find the length of cu. the triangles are similar. show your work.

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?