Answer :

Statements: 

1# Melissa bought a cake of cost $75.
2# The tax that has to be paid for the product is 10% of the cost of the product, itself.

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Total amount of money = [tex]$75 +( \frac{10}{100}*75 )[/tex]
 
                                         = $75 + $7.5                                         
                                         = $82.5 

 

Answer:

the total amount she paid for the cake, $82.5

Step-by-step explanation:

As per the statement:

Melissa bought a cake that cost $75.

⇒Cost of cake = $75

It is also given that:

The sales-tax rate is 10 percent.

then

Sale tax she gave on cake = [tex]\frac{10}{100} \times 75 = \$7.5[/tex]

We have to find the total amount she paid for the cake.

[tex]\text{Total amount she paid for the cake} = \text{Cost of the cake}+\text{Sale tax}[/tex]

Substitute the given values we have;

[tex]\text{Total amount she paid for the cake} = 75+7.5 = \$ 82.5[/tex]

therefore, the total amount she paid for the cake, $82.5