Question
8 - (-7) =
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What is the distance from zero if a quadratic function has a line of symmetry at x=-3 and a zero at 4

Alice is paying her bill at a restaurant. but tax on the cost of a male is 5%. she decides to leave a tip 20% of the cost of the meal plus the tax

Given abc find the values of x and y. in your final answer, include all of your calculations.