Find the length of T PLZ

Evaluate the expression for the given value of the variable 7a - 4a for a =8

The domain of a function can be represented by which one of the following options? o a. a set of output values o b. a set of f(x) values o c. a set of input values o d. a set of both input and output values

Write 5(6x+4)-2(5x-2) in the form a(bx+c) where a, b and c integers and a> 1