week $3$ sales $120,$ week $4$ sales $110,$ week $5$ sales $125,$ week $6$ sales $145,$ Based on the information above, using a three period weighted moving average with weights$(\mathrm{.}2,\mathrm{.}6,\mathrm{.}2)$ to calculate the forecast for week $7$ which data gets the weight of $\mathrm{.}6?$