Need help solving these Quadratic formulas.

Find the value of the variable and the length of each secant segment

According to statistics a person will devote 32 years to sleeping and watching tv. the number of years sleeping will exceed the number of years watching tv by 18. over a lifetime, how many years will the person spend on each of these activities

Solve for x -2.3(r - 1.2 ) = -9.66 enter you answer as decimal.