Answer and Explanation:
The journal entries are shown below:
a. Treasury Stock Dr $4,840 (220 shares × $22)
To Cash $4,840
(Being repurchase stock for cash is recorded)
b Cash $2,760 (120 shares × $23)
To Treasury Stock $2,640 (120 shares × $22)
To Additional Paid in capital $120
(Being the sale of the shares are recorded)
c Cash $1,890 (90 shares × $21)
Additional Paid in capital $90
To Treasury Stock $1,980 (90 shares × $22)
(Being the sale of the shares are recorded)