please help with all

QUESTION 38 Suppose that the luxury sales tax rate in a foreign country is 19%. A very wealthy socialite bought a diamond tiara for $244,000. How much tax does she pay? O a. 512,842 b. 5464 O546,360 O d. $4,636 QUESTION 17 You decide to invest $ 2,500 in an account that pays 6 % per year, compounded quarterly. How much will you have after 5 years? If need ed, please round your answer to two decimal places. QUESTION 12 You have borrowed $11,000.00 at a simple interest rate of 9% for 6 months. What is the total amount (principle and interest) due at the end of these 6 months? Round answer to the nearest cent. O a, 5495.00 O b.$11,990,00 O 5990.00 O d. 511,495,00