Lots of points!! Anthony records the growth of his tomato plants over a 1-week period. What is the difference in the plant with the most growth and the plant with the least growth?

Which is greater, 7 p 5 or 7 c 5? 7p5 7c5

Could someone me with this question i’ve been stuck on it for 20 minutes

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?