You must use 2 eggs to make 6 dozen cookies. How many eggs are needed to make 42 dozen cookies? Use a proportion to solve.

Select the conic section that represents the equation. 3x2 + 3y2 -2x + 4 = 0

Which radical expression is a rational number? a. √ 360 b. √ 644 c. √ 225 d. √ 122

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?