In a sale, all prices are reduced by 15%. Find: a) The sale price of a good originally costs $120. b) The original price

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In a sale, all prices are reduced by
15%. Find:
a) The sale price of a good originally costs $120.
b) The original price of a good sold for $136 in the
sale.
2. You just bought a car for $16 000. It
depreciates by 30% in the first year, 20% in the second year, and
15% thereafter.
a) How much will it be worth after
5 years?
b) What is the overall percentage
decrease?
3. The price of a
certain good is $350 including 10% VAT.
a) What is the price without
VAT?
b) If VAT is increased to 12% what would
be the new price?
c) What is the net percentage
decrease or increase?
4. A sum of $15 000 is invested in a bank. Find
when will the investment first exceed $40 000, if the rate is 10%
compounded monthly.
5. Find the future value of a sinking fund that
collects $400 at the beginning of every month for 10 years at an
annual rate of 9%.
6. Find the present value of the annuity that yields
$700 at the end of every month for 15 years at an annual rate of
6%.
7. Find a nominal rate, compounded semi-annually, if APR is
8%.
8. An investment rises from $20 000 to $25 000 over a
period of 3 years. a) Calculate the overall percentage change.
b) Is this a good investment if the annual rate is 7%
compounded?