If sales rate is 6%, approximately what will his bill be?

Question

Mr. Jamison, an art teacher, would like to purchase enough supplies to get the class stocked. He picks 6 dozen sketch pencils, 4 dozen colored pencils, and 2 dozen art gum erasers. Sketch pencils are ($4.60 a dozen) Colored pencils are ($7.88 a dozen) and art gum erasers are ($6.54 a dozen)

Answer 1

6 dozen sketch pencils at $4.60 a dozen is 6×4.60=$27.60.

4 dozen coloured pencils at $7.88 a dozen is 4×7.88=$31.52.

2 dozen erasers at $6.54 a dozen is 2×6.54=$13.08.

Add these together: $72.20.

6% of $72.20 is 6×72.20/100=$4.3320, which we round up to the nearest cent: $4.33 to be added to $72.20 making $76.53.