Please help on this question

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?

Valentina is subtracting from . she finds the lcd to be 15y2. what is valentina's next step?

What will the graph look like for a system of equations that has no solution? a. the lines will be perpendicular. b. the lines will cross at one point. c. both equations will form the same line. d. the lines will be parallel.