The revenue from a manufacturing process (in millions of dollars per year) is projected to follow the model

R = 110

for 10 years. Over the same period of time, the cost (in millions of dollars per year) is projected to follow the model

C = 60 + 0.1t²,

where t is the time (in years). Approximate the profit over the 10-year period. (Round your answer to two decimal places.) $ million