Problem $10-1$ Calculating the Amount for an Emergency Fund $[$LO$1]$

Beth$-$Anne and Martin Stewart have total take$-$home pay of $$4,500$ a month. Their monthly expenses total $$4,020.$ Calculate the minimum amount this couple needs to establish an emergency fund. $($Omit the $"$$$"$ sign in your response.$)$

Minimum amount as emergency fund $