I need help with numbers 9-18 please

Complete the following: LU 7.27) Date goods Invoice are received 7-9. June 18 Last day of discount period Final day bill is due (end of credit period) Terms 1/10, n/30 7-10. Now. 27 2/10 EOM June 3 3/10, 130, ROG 7-11. May 15 7-12. April 10 2/10, 1/30, 1/60 3/10 EOM 7-13. June 12 7-14. Jan. 10 Feb. 3 (no leap year) 4/10,n/30, ROG "If more than one discount, assume date of last discount Complete the following by calculating the cash discount and net amount paid: LU 7-211) Gross amount of invoice (freight charge already Freight Date of Terms of Date of Cash included charge invoice invoice payment discount 7-15. $7.000 $100 4/8 2/10, 1/60 4/15 Net amount paid None 8/1 3/102/15, n/308/13 7-16. S600 11/13 None 12/3 1/10 EOM 7-17. $200 1/4 11/29 1/10 EOM S100 7-18. S500 Complete the following: LU 7-2(2) Amount of payment to be credited Balance outstanding Amount of invoice Date of partial payment 5/15 Invoice date Actual partial payment made $400 Terms 2/10, 1/60 5/6 7-19. S700 775 4/10, 160 $400 7/14 7-20, S600