The assembly room six rows with 30 chairs in each row. if third graders fill three rows, how many third-graders are in the room? i need to draw a picture too

6 × 30 which would equal 180, so if there are 3rd graders in each seat and they only fill half, 180 ÷ 2 there is 90 3rd graders in the room. I can't draw 30 seats per row on my phone, but you get the idea.