1) You and two friends are at a pizza parlor. The total cost for your drinks and a large
pizza is $14.90 before tax. The tax
rate is 5%. You wish to leave a 15% tip.
a)
Is calculating the tax (5%) and the tip (15%) that same as
just calculating a total
20%? Prove your answer.
b)
You want to share this bill equally, and no one wants to deal
with any change
smaller than a quarter. So, how much
will each of you pay?
c)
When you get ready to pay the bill, the guy at the cash
register says you have won
the Pizza Prize – they pay for the pizza, you just pay the tax and tip. Keeping in
mind your no small change policy, now how much must each of you pay?
2) Ok, rewrite the story
above, only make it Cowlitz county with a sales tax rate of 7.6%.
Please answer questions a, b, and c.
a) tax and tip --- calc separately or can combine?
b) share bill, no small change
c) you pay tax & tip only, no small
change
3) I bought a quilt at Fred Meyer near Seattle. (8% sales
tax).
The original price was $120. It was 30%
off.
a) Calculate the discount, then calculate the tax on the
amount of the sale.
b) Now, calculate the discount by SUBTRACTING the sales tax % from the discount
%,
then calculate that amount