Respuesta :
Answer: B. $82.50
Step-by-step explanation:
Given: The percent of tax Lonnie pays = 5%=0.05
He just bought $80 in groceries, but not $30 worth of those groceries were taxable.
i.e. The taxable amount = [tex]\$80-\$30=\$50[/tex]
Now, the amount of tax on $50 = [tex]0.05\times50=\$2.50[/tex]
Now, the total amount that Lonnie paid for groceries, including sales tax is given by :-
[tex]\$80+\$2.50=\$82.50[/tex]
Hence, the total amount that lonnie paid for groceries, including sales tax = $82.50 .