SOLUTION: please help me write an equation that represents the total cost c of an item costing x dollars. a salesperson needs to calculate the cost of an item with a sale tax of 8.25%.

Question 458743: please help me write an equation that represents the total cost c of an item costing x dollars. a salesperson needs to calculate the cost of an item with a sale tax of 8.25%.
Answer by algebrahouse.com(1659) (Show Source): You can put this solution on YOUR website!
total cost = c
cost of item = x
tax = 8.25% = .0825 {change percent to decimal by moving decimal point left two}

To find tax:
- multiply cost of item by percent tax (as a decimal)
= .0825x

To find total cost:
- add cost of item plus tax
= x + .0825x

c = x + .0825x {cost of item plus tax}
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