am lost please help thanks

Suppose Tom's utility function of consumption (c) and leisure (l) is given by the following equation: a i U = 3 - (:3 - l3 where c is the dollar amount of goods and services purchased per day and l is measured in hours per day. Suppose further that Tom's wage is $25 per hour and his non-labor income is $100. How many hours per day will Tom choose to work? Enter this number of hours below. Round your answer to two decimal spaces