Higher order thinking. Jessamine needs to find 3×3,4×6, and 7×2. She draws area models to solve the problem. what polygon group do her area models all belong to? Explain ​

Acylinder has volume 45π and radius 3. what is it’s height?

Asinusoidal function whose frequency is 1/6pi

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?