where did you get 80 + T

The expression "80 + T" represents the sum of 80 and the value of T. However, it is not clear from your question where the value of T comes from. The value of T could be obtained from various sources such as user input, a variable in a program, or from a mathematical equation.

If you are looking for a specific value of T to substitute into the expression "80 + T," you need to provide more information. Depending on the context, T could represent a variable with a specific value assigned to it, such as T = 5. In that case, you could substitute T = 5 into the expression to obtain the result: 80 + 5 = 85.

On the other hand, if T depends on certain conditions or is not defined explicitly, you may need to provide more context or explanation. Without that information, it is not possible to determine the specific value of 80 + T.