Your distance from the lighting varied directly with time it takes you to hear thunder. if you hear thruder 10 seconds after you see the lighting you are about 2 miles from the lighting I have to estimate how many seconds it would take for the thruder to travel a distance of 4 miles

You give a $4 tip for a meal that cost $22. approximately what percent of the bill was your tip?

Which shows the graph of the solution set of 3y – 2x > –18?

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?