The new Apple Airpod cases are on sale for 25% off. They usually cost about $20. The Manufacturer makes the cases for $12. What is the percent markup? What is the cost of the Airpods after the discount? If I also receive an employee discount, what is the cost of the Airpods after both discounts? How much is my employee discount? Highlight the correct answer. $9 80% $12 40% 75% $15 $13.50 10% $12 75% $15 20% 75% $13.50 10% 15%

Girardo is using the model below to solve the equation . girardo uses the following steps: step 1 add 4 negative x-tiles to both sides step 2 add 1 negative unit tile to both sides step 3 the solution is which step could be adjusted so that gerardo's final step results in a positive x-value? in step 1, he should have added 4 positive x-tiles to both sides. in step 1, he should have added 3 negative x-tiles to both sides. in step 2, he should have added 4 negative unit tiles to both sides. in step 2, he should have added 1 positive unit tile to both sides.