Basically what you do is .. Sum up (3x2+1) which gives you 7 Sum up (3x3 +1) which gives you 10 Sum up (3x4+1) which gives you 13 Sum up (3x5 +1) which gives you 16 and now that you have those numbers you're gonna add up the totals and you should end up with Answer B- 46, Hope I helped [: