Sierra is looking to rent her first apartment. she found a nice apartment in her

Sierra is looking to rent her first apartment. she found a nice apartment in her budget with a monthly rent of x dollars. at lease signing, sierra had to pay first and last month’s rent, a security deposit of one and a half times the monthly rent, and an application fee of $65. if sierra paid $2,305 at lease signing, how much was the security deposit?
b

$960