I need help answering this please

Let w=23 . what is the value of w + 45 ?

Find the center and the radius of the circle with the equation: x^2-2x+y^2+4y+1=0?

Pepe and leo deposits money into their savings account at the end of the month the table shows the account balances. if there pattern of savings continue and neither earns interest nor withdraw any of the money , how will the balance compare after a very long time ?