Sopve it for me please

A cup of coffee has a temperature of 85 C when it is poured and allowed to cool in a room with a temperature of 20 C. After 1 minute, the temperature of the coffee is 80 C. Determine the temperature of the coffee at time t. How long must you wait until the coffee is 35 C? . .. T(t) = (Use integers or decimals for any numbers in the expression. Round to four decimal places as needed.) You will have to wait approximately minutes until the coffee is 35 C. (Do not round until the final answer. Then round to the nearest integer as needed.)