T=34.34
explanation: solve for t by simplifying both sides of the equation, then isolating the variables.
Each bottle serves 2 students. He needs to buy 14/2 = 7 bottles.
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Answer:
$16.90
Step-by-step explanation:
First you need to find how much the markup is in dollars.
Multiply 13(0.3).
This will give you 3.9.
Then you add this to the original cost of the glasses.
13+3.9= 16.9.
So, the final cost of the glasses is $16.90.
