For the first one it will be (C) $32.13.
To do this, you will add up all the cost of their food together which equals $15.02 in total. Then, add both taxes which will be a total of 19%.
So, we have to find out how much the total will be with the taxes by changing the percentage into decimal which will be .19 and we will multiply it by the total cost of food.
15.02 x .19 = 2.85. The $2.85 is how much total in taxes it will be and we add that to the total cost of the food. $15.02 + $2.85 = $17.87 for the total.
They gave a $50 bill and we will subtract the total.
50 - 17.87 = 32.13
Therefore, the change will be $32.13.
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This second one is throwing me off a little with the "per hour" thing but I got the answer of (D) $453.92.
We'll do simple addition with only one instance of multiplication. We'll first multiply the per hour charge. $6.50 x 30 hours = 195. So we have all of our numbers to add now.
82.92 + 80 + 195 + 96 = 453.92.
Thereby, all of her total costs will be $453.92
