# Tutor profile: Tionna H.

## Questions

### Subject: Chemistry

What is the symbol for Silver?

The symbol for silver is Ag, which stands for argentum; the old name for silver.

### Subject: US History

Before the start of the civil war in 1861, Which state was the first to secede from the Union and why?

The first state to secede from the Union was South Carolina. After the election of Abraham Lincoln in 1860, South Carolina (as well as Alabama, Texas, Mississippi, Georgia, Florida and Louisiana) felt threatened due to the north opposing the right to own slaves.

### Subject: Algebra

Simplify the expression: 5(5x-6) + 2(b-6) - 6b

To simplify this algebraic expression, you must first get rid of the parenthesis by multiplying your factors. Multiply five to the equation inside of the parenthesis it is being multiplied to. Your answer should be 15x - 30. Next, you multiply two to the equation inside of the inside of the parenthesis it is being multiplied to as well. You should get 2b - 12. Your equation should now look like 15x - 30 + 2b - 12 - 6b. To get your final answer, you group the like terms. 15x doesn't have a term it is like so it is left alone. 30 and 12 are alike but, because 30 has a minus sign in front of it with no number to subtract from, it becomes a negative. That equation should come out as -30 - 12 = -42. Next, you group like terms 2b and -6b. That should come out as 2b - 6b = -4b. Your final answer is 15x - 4b - 42

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