Going into the final exam which will count as two tests, Amelia has test scores of 77.82.72.61, and 96. What score does Amelia need on the final in order to have an average score of 80?

You give a $4 tip for a meal that cost $22. approximately what percent of the bill was your tip?

What is the product? a-3/15a × 5/a-3

Tim has obtained a 3/27 balloon mortgage. after the initial period, he decided to refinance the balloon payment with a new 30-year mortgage. how many years will he be paying for his mortgage in total?