c.) in the slope-intercept formula y = mx + b, m is the slope and b is the y-intercept. since the two equations have the same slope but different y-intercepts we can infer they are parallel.
She was 22 when she had triplets so if the triplets are 12 then just add 22+12=34 or when she had Mia she was 18 if Mia is 16 then add 18+16=34 Also, she had another child at 23 if the child is 11 then add 23+11=34 Hope it helps! :)
