Melissa bought a cake that cost $75. the sales-tax rate is 10 percent. what is the total amount she paid for the cake?

$0.75
$7.50
$75
$82.50

Option D. $82.50

Step-by-step explanation:

The cost of the cake that Melissa bought = $75.00

The sales-tax rate on the cake = 10%

The total amount she paid for the cake = 75 +(10% of 75)

                                                                 = 75 +

                                                                 = 75 + (0.10 × 75)

                                                                 = 75 + 7.5

                                                                  = $82.50

Melissa paid $82.50 for the cake.

answer: 40.95

step-by-step explanation:

{3 + i, 3 - i, 3, -1}

step-by-step explanation: