Long$-$Life Insurance has developed a linear model that it uses to determine the amount of term life insurance a family of four should have, based on the current age of the head of the household. The equation is:

$y=160-0\mathrm{.}30x$

where

$y=$ Insurance needed $($$$000)$

$x=$ Current age $of$ head $of$ household

Amount of term life insurance $$145\mathrm{.}00$ thousands