math D1

Choose THREE problem below to complete    
 Answer True or False and explain your reasoning:

1. To change a percent to a decimal, replace the percent symbol with 1/100 and divide.
2. When using the order of operations, multiplication is always performed before division.
3. The opposite of a number is the negative of that number.
4. The number 0 is a positive number.
5. Division by 0 is undefined.
6. The equation 3 + 7 = 7 + 3 is an example of the commutative property of addition.
7. The product of an even number of negative numbers is negative.
8. 3x – y is an equation.
9. When multiplying terms with the same base the exponents are also multiplied.
10. The expression 4(x – 3) is equivalent to 4x – 3.