$3$

$2.($a$)(1$ point$)$ Write down the first letter of your name$-$ first letter is $($S$).$

$($b$)(1$ point$)$ Think of an item at the grocery store that starts with the first letter of your name. Write down the UPC.

$($c$)(2$ points$)$ Convert each digit to an integer composition, as described in the notes, and record them below.

$($d$)(6$ points$)$ Hand draw the UPC bar code using the data from the integer compositions. Don't forget the guard bars and center bar. You may find it helpful to use a ruler. Double check that your code scans using a bar code scanner $($this is how I will check your answer$).$