Answer:
The total cost of the skateboard is $85.6.
Step-by-step explanation:
The total cost of the skateboard would be $80 plus the sales tax that is 7% of the price. So, you have to multiply $80 for 7% to determine the amount that would be paid as sales tax:
$80*7%=$5.6
Then, you have to add the price of the skateboard with the tax to have the total cost:
$80+$5.6= $85.6