Roberto Designers was organized on January 1, 2021. The firm was authorized to issue 180,000 shares of $4 par value common stock. During 2021, Roberto had the following transactions relating to stockholders' equity: Issued 18,000 shares of common stock at $6 per share. Issued 36,000 shares of common stock at $7 per share. Reported a net income of $180,000. Paid dividends of $90,000. Purchased 5,000 shares of treasury stock at $9 (part of the 36,000 shares issued at $7). What is total stockholders' equity at the end of 2021? Multiple Choice $945,000 $441.000 C $765,000 $405.000