Answer:
He would pay $4.06 sales tax for an item costs $58.00 before tax.
Step-by-step explanation:
Given:
Mike paid $2.94 in sales tax on an item that cost $42.00 before tax.
Now, at that rate find the sales tax for an item that costs $58.00 before tax.
So, we find the rate:
Sales tax rate = sales tax on item / cost of item before tax × 100
[tex]=\frac{2.94}{42} \times 100[/tex]
[tex]=\frac{294}{42}[/tex]
[tex]=7\%[/tex]
Now, we get sales tax on item costs $58.00:
[tex]Sales\ tax=7\%\ of\ \$58.00[/tex]
[tex]Sales\ tax=\frac{7}{100}\times 58[/tex]
[tex]Sales\ tax=\frac{406}{100}[/tex]
[tex]Sales\ tax=\$4.06[/tex]
Therefore, he would pay $4.06 sales tax for an item costs $58.00 before tax.