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5. Boxing day sales offer 20% discount on ski coats. The coat you want is $600. (1 mark each) a) What is the discount amount? b) What is the coat's sale price? 6. You new job pays you $74,500/year. If your old job paid $62,800/year, what is the percent increase for the new job over the old job? (1 mark) 7. The population Italy is projected to decline from 60.5 million to 54.4 million by the end of 2020. What is the percent decrease of this decline? (1 mark) 8. You borrow $5000 from a loan shark at 9.5% simple interest rate for 6 months. How much do you owe at the end of the term? (1 mark) 9. You lend out $3500 and get $3937.50 back after 2 years. What was the simple interest rate on the loan? (1 mark) 10. If you wanted to have $16,500 in your account after 8 years with 7% simple interest rate, how much would you need to start with? (1 mark) 11. The principal represents an amount of money deposited in a savings account subject to compound interest at the given rate. Find out how much money will be in the account after the given number of years. (Assume 360 days in a year). (1 mark each) Principal Rate Compounded Time a) $10,000 4% Semiannually 3.5 years b) $6000 6.5% Monthly 6 years 12. The principal represents an amount of money deposited in a savings account subject to continuously compounded interest at the given rate. Find out how much money will be in the account after the given number of years. (1 mark each) Principal Rate Time a) $8500 5.2% 8 years b) $1800 3% 2 years