What is 12a-a-a-a simplified?

Who is chord overstreet current girlfriend? What would 30 percent be in a decimal? What are all possible cross sections of a sphere? What value is stored in uninitialized variables? Who was the creator of algebra? How long would it take to count 5000 dolars? Is 3 15 in simplest form? What is the number 1 followed by 1 centillion zeros? How much does an 330 jet cost? What does number 9 mean in the Bible? How many times can 6 go into 547? How do you write 300 and one thousands in decimal form? When dividing powers with the same base you do what? 1000 km is equal to how many miles? What is 4x-8=20? Are shifts sin cos tan equal to csc sec cot respectively? How much is 190 km in meters? 1 millimeters equals how many inches? What is 3 quarters of 112? What does Tagment mean in maths?