For every 4 pages Yuel can read, his friend Simon can read 2 pages. Let x represent the number of pages Yuel reads, and let y represent the number of pages Simon reads.
Create a table showing the relationship between the number of pages Yuel reads
and the number of pages Simon reads.
• Is the number of pages Simon reads proportional to the number of pages Yuel
reads? Explain why or why not.

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?