Brandon wants to buy a new bike. The model hetkestis on sale for 15% of its orginal price His parents agree to pay for $50 of the cost of the anginal cost of the bike is x coltars, which of the expressions below represent the amount Brandon has to pay
1.0.152 - 50
20.852 - 50
30.85(x - 50)
42-0.152 - 50
1 only
2 and 4 only
С
3 and 4 only
23 and 4

Jacks bank statement shows an account balance of -$25.50. which describes the magnitude, of size, of the debt in dollars

Assume that y varies inversely with x. if y=1.6 when x=0.5 find x when y=3.2

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?