Question 1019121
T=Total Sum and t=total tax 5%=.05
add all 4 prices together
{{{5.30+1.29+0.53+0.68=T}}}
{{{7.8=T}}}
{{{.05T=t}}}Substitute T for number value
{{{.05(7.8)=t}}}
{{{0.39=t}}}
now add the taxes to total price
{{{7.8+.39=highlight_green(8.19)}}}