Mickey built his lemonade stand out of $75,000 worth of plywood and paint. he sells a glass of lemonade for $30 and uses $1.25 of lemons, sugar and water to make his product. how many glasses of lemonade does he need to sell to break even?

Write the equations in logarithmic form 10^3=1,000

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?

What is the solution for 6 - 7/8? explain the steps.