Whats the answer?

Sal's Salon hires workers to give manicures. Manicures The market for manicures is perfectly competitive, and the price of a manicure is $30.00. The labour market is Workers per day competitive, and the wage rate is $90 a day. 16 The table shows part of the workers' total product schedule. 21 25 To maximize profit, how many workers does Sal's hire and how many manicures does Sal's produce? 28 30 Please assume that the firm can only hire whole numbers of workers and round to the nearest worker when determining your answer. Sal's will hire workers to maximize profit. Sal's produces manicures a day to maximize profit