Having trouble with algebra i

can anyone explain/show the process to solving this equation?

Ben is three times as old as samantha, who is two years older than half of michel's age. if michel is 12. how old is ben?

Solve 2x2 + 8 = 0 by graphing the related function. there are two solutions: . there are no real number solutions. there are two solutions: 2 and -2

Math each whole number with a rational,exponential expression