The following data show the sales (in Millions) of seeds in Oman. Using the least square method find the trend values.
YEAR	2012	2013	2014	2015	2016	2017	2018	2019	2020	2021
SALES	600	750	900	1050	1200	2160	3000	3840	3600	4200

The following data show the sales of products A, B, C, D and E in Sultanate of Oman. Find the four, five and six years simple moving averages and three years weighted moving average. (WEIGHTS - 2021 - 0.50, 2020 - 0.30, 2019 - 0.20).
Year	Sales - A (RO in 000)	Sales - B (RO in 000)	Sales - C (RO in 000)	Sales - D (RO in 000)	Sales - E (RO in 000)
2016	10800	16200	21600	27000	13500
2017	19440	29160	38880	48600	24300
2018	27000	40500	54000	67500	33750
2019	34560	51840	69120	86400	43200
2020	32400	48600	64800	81000	40500
2021	37800	56700	75600	94500	47250