2(x+8)

2. 2x-56=16x ( what does x = )

3. 7 + 4x ( when x = 3)

4. 2x+3-y =

5. 2( -4+ 8x)

6. 10 ÷ 2-x (x = 2)

7. 3x+2=14 (what does x equal? )

8. 2(x+ 3)

9. 22(x+9)

10. 10( x-3) when x is 15

11. 5(x+8) (when x is 10)

12. 19(x+7) when x is 2

13 9 x - 2 = 16 (how can this be? )

14 2x + 3 when x = 3

Ricky takes out a $31,800 student loan to pay his expenses while he is in college. after graduation, he will begin making payments of $190.66 per month for the next 30 years to pay off the loan. how much more will ricky end up paying for the loan than the original value of $31,800? ricky will end up paying $ more than he borrowed to pay off the loan.

The? half-life of a radioactive substance is 20 years. if you start with some amount of this? substance, what fraction will remain in 120 ? years

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?