~Help me with math?~

Question

Please someone help me!!! *Falls over* I'm soooo bad at math! I really need help!

1.A number that is written using powers of 10 is written in

A. standard form

B. combined terms

C. like terms

E. scientific notation

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2.If we were to separate all students by their grades in school and then select the group that all has straight A's, this is random sampling.

A.True

B. False

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This item, also called the 2nd quartile, is represented by a line in the middle of the box in a box and whisker plot.

A. upper extreme

B. median

C. lower extreme

D. positive correlation

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When solving an equation, placing a number in the equation in the place of a variable is called

A. a factor tree

B. combining terms

C. substitution

D. grouping terms

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Answer 1

1.   E

2.   False

3.   B

4.   C

Answer 2

the answer is e,b,b,c

here is a link.

http://regentsprep.org/regents/Math/data...

peace...

Answer 3

E

B

B(?)

C