Joan, Ronald, and Harry own and run the JRH Tax Preparation Partnership (JRH). In their partnership agreement it provides that all purchases over $2,000 must be authorized by two partners, and that only Joan is able to draw checks. Unknown to Harry and Joan, Ronald uses the partnership's account to buy a $5,000 office phone system from Acme Office Supplies Inc (Acme) and also buys on the partnership's credit a $3,500 jet ski from SkI!! which is an outdoor outfitters emporium next to JRH's office, and also uses the partnership's account to buy $4,000 worth of stationery from Acme. Separately, SkI!! is a tax prep client of JRH and the management of SkI!! know all the JRH partners and vice versa. Prior to Ronald making these purchases, Joan told Acme that she is the only stationery buyer for the partnership. Joan refuses to pay Acme for Ronald's purchases, and refuses to pay SkI!! also. SkI!!'s manager Cindy calls round next door to see Joan to try to persuade her to authorize the payment for the jet ski. While Cindy is on JRH's premises one of the partnership's employees negligently drops a 4lb volume of the "IRS Federal Income Tax Guide 2022" on Cindy's foot, breaking her big toe. In pain and shock Cindy yells an obscenity at Joan, who slaps Cindy's face, breaking her eye-glasses and inflicting an injury.

what are the rights of Acme against Ronald? (stating relevant legal principles)