Please answer show all your work or tell me the steps choose any question to do or do all of them i dont care

2. If sales tax rate is 7% how much would you pay for an item that is $23.36

3.If the sales tax rate is 8.25% how much would you pay for an item that is $24.00

4.Original value:140 New value:98 what is the percent change

5. an item priced $30.82 is on sale for a 15% off. What is the sale price of the item

6. if the sales tax rate is 7.6%, how much will you pay on a $330 item

7. a $129 item is marked up 20% how much is the markup

8.four friends go out to eat and their meal costs $86.50. The sales tax is 6.75% and they should tip the waiter 20% how much should each person pay to the nearest cent

9.original cost: $35 new cost: $38.22
what is the percent increase

Use the inverse of the function y=x^2-18x to find the unknown value [tex]y = \sqrt{bx + c \: + d} [/tex]

Can someone answer this question? : )

An annual marathon covers a route that has a distance of approximately 26 miles. winning times for this marathon are all over 2 hours. the following data are the minutes over 2 hours for the winning male runners over two periods of 20 years each. earlier period 14 12 15 22 13 10 19 13 9 14 20 18 16 20 23 12 18 17 6 13 recent period 7 11 7 14 8 9 11 14 8 7 9 8 7 9 9 9 9 8 10 8 (a) make a stem-and-leaf display for the minutes over 2 hours of the winning times for the earlier period. use two lines per stem. (use the tens digit as the stem and the ones digit as the leaf. enter none in any unused answer blanks. for more details, view how to split a stem.) minutes beyond 2 hours earlier period 0 1 2 (b) make a stem-and-leaf display for the minutes over 2 hours of the winning times for the recent period. use two lines per stem. (use the tens digit as the stem and the ones digit as the leaf. enter none in any unused answer blanks.) minutes beyond 2 hours recent period (c) compare the two distributions. how many times under 15 minutes are in each distribution