Please help, what is the domain of the graph?

What is the prime factorization of 23 ?me with this question

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

Ebuka's monthly rent is $750. if ebuka pays the rent late, his landlord charges 4% interest per week that the payment is late. write a function that gives the total cost r(t), in dollars, of ebuka's rent if he pays it t weeks late.