SOLUTION: please I need help with this problems..thank you 2. Express 33% as a fraction. 5.List all the factors of 45. The factors of 45 are 5 and 9 5x9=45 9x5=45

Question 86940: please I need help with this problems..thank you
2. Express 33% as a fraction.

5.List all the factors of 45.
The factors of 45 are 5 and 9
5x9=45
9x5=45

8. If a = 2 and b = –1, evaluate 2a + 5b.

9. List the like terms in the following group of terms.
6x, –7wx2, 4w2x, 8wx2, –2wx2, –9w2

10. Evaluate. 42 + 2•7 – (5 • 4 – 15)

11. Simplify: –(–(–1)).

12. Use the properties of addition and multiplication to complete the statement.
(17 + 0) + 5 = 17 + ( ____ + 5)

13.Find the GCF of 6, 18, and 30.
GCF for 6.18 and 30 is 90

14. Convert 0.34 to a fraction and write your answer in lowest terms.

16. Evaluate. 3 • 62 – 8 • 7=

17. Find the LCM for 8 and 12.

19. Write the following phrase using symbols. Use the variable x to represent the number.
A number increased by by 1

Answer by 303795(562) (Show Source):
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13.Find the GCF of 6, 18, and 30.
GCF stands for Greatest Common Factor. ie the largest number which divides into each of the numbers which you have.
For these numbers it will be 6 as 6 divides into 6(once), 18(3 times) and 90(15 times). You have found the lowest common multiple which is the lowest number which they will all divide into.