Question

Brandon buys a radio for $45.45 in a state where the sales tax is 7%.

Answer 1

$3.18 in taxes
You make 7% a decimal which is 0.07 then times that by the original cost which is 45.45 so

Do 45.45 times 0.07 equals $3.18 for part 1

Answer 2

Given : Brandon buys a radio for $45.99 .sales tax rate is 7%.sales tax is a consumption tax imposed by the government on the sale of goods and services.
Let the price of Radio before the sales tax be $x. Sales tax on $x is 7% x.
Price before sales tax + Amount of sales tax= Cost of Radio.
x+7%x =45.99
Or x+0.07x=45.99
1.07x=45.99
Dividing both sides by 1.07.
x= 41.11
Cost of Radio before tax = $41.11
Sales tax paid = 43.99-41.11= 2.88
Tax paid = $2.90 (To nearest cent)