Show work please $!$

Assume that Jaws Corp. has the following initial balance and subsequent purchases of inventory:

Beginning balance: $1,300$ units @ $$150$ each

Purchase $1$: $1,700$ units @ $$180$ each

Purchase $2$: $1,000$ units @ $$195$ each

Assume that $3,000$ units are sold during the year. Compute the cost of goods sold $($COGS$)$ for the year and the inventory on the year$-$end balance sheet under the following methods:

a$)$ FIFO

b$)$ LIFO

c$)$ Weighted$-$Average Cost