Fill in the highlighted cells. Sales Tax
Individual's
Income
Amount spent on
essentials
Amount of
sales tax
Percentage of income
=(tax* amount spent)
lincome
20,000
5,000
8.25%
2.1% (= (8.25% x 5000)/
20,000)
50,000
10,000
8.25%
75,000
15,000
8.25%
100,000
20,000
8.25%

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?