The leader board at the Lakeside Golf Tournament shows that Mei's score is 3 and Noah's score is −6.
How many more strokes did Mei take than Noah?

What is the 17th term in the arithmetic sequence in which a6 is 101 and a9 is 83

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?

The slope of the line passing through the points (2, 7) and (-4, 8) is