I think it’s the last one
<h2><em><u>REFERS </u></em><em><u>TO </u></em><em><u>THE </u></em><em><u>ATTACHMENT</u></em><em><u>.</u></em></h2>
<h2><em><u>PLEASE</u></em><em><u> </u></em><em><u>MARK</u></em><em><u> ME</u></em><em><u> AS</u></em><em><u> BRAINLIEST</u></em><em><u>:</u></em></h2>
5 pencils cost $.80. Each pencil costs $0.16
Then divide $0.16 into $0.40
This equals 2.5 pencils, you can't buy half a pencil