Kevin has $1,427 in a savings account his brother haley has saved an amount with a 4 that is 1/10 the value of the 4 in kevin's savings account. how much could harley have in his savings account?

What is 1/2 x (6 x 4)+3 + 2 show your work

The function f(x) is shown in this graph the function g(x)=6x

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?