Steven recorded the growth of a plant over 10 weeks for his science project. he made a graph that shows how much the plant grew each week. the plant was 2 in. tall when steven started his project. at week 5, the plant was 8 in. tall. which equation represents steven’s situation, where x is the number of weeks and y is the height of the plant? a. y= 8/5x+2 b. y= 6/5x+2 c. y= 5/8x+2 d. y= 5/6x+2

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?