Antoine and tess have a disagreement over how to compute a 15% gratuity on $46.00. tess says, “it is easy to find 10% of 46 by moving the decimal point one place to the left to get $4.60. do that twice. then add the two amounts to get $4.60 + $4.60 = $9.20 for the 15% gratuity.” how should antoine respond to tess’s method? a. “tess, the best way to find 15% of $46.00 is to multiply 1/15 by $46.00 to get $3.07, which is the 15% gratuity.” b. “tess, you found 20% of the number because you added 10% and 10%. you need to add 10% to 1/2 of 10%. add $4.60 and $2.30 to get $6.90, which is the 15% gratuity.” c.“tess, the best way to find 15% of $46.00 is to multiply 0.015 and 46.00 to get $0.69, which is the 15% gratuity.” d. “tess, you should use a table with 5% segments to find the gratuity. each 5% segment has a value of $9.20, so that is the 15% gratuity.”