Help me answer these please will give brainlst

Find the sum of the measure of the interior angles of a polygon of 9 sides ; of 32 sides

Sunday: 1 1 2 monday: 1 tuesday: 2 1 2 wednesday: 1 3 4 thursday: 2 friday: 1 1 2 saturday: 2 jenna is a swimmer and trains every day. the schedule shown outlines the number of hours she trains each day. what is the total number of hours that jenna trains during the week?

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10