Simplify the expression 2√ 20 - 3√ 7 - 2√ 5 + 4√ 63.

A. 2√ 20 - 4√ 7 - 2√ 5

B. 2√ 20 - 3√ 7 - 2√ 5 + 4√ 63

C. 2√ 20 - 3√ 7 + 4√ 63

D. 2√ 5 + 9√ 7

The longer leg of a right triangle is 4cm longer than the shorter leg. the hypotenuse is 8cm longer than the shorter leg. find the side lengths of the triangle

Which of the following expression is equivalent to m+m+m+m+m? A. M+5 B. 5m C. m5 D. 5 (m+1)

Carmen has taken out a loan for $800 to buy a car. She plans to pay back the loan at a rate of $40 per month. Ramona has borrowed $500 to buy a car, which she plans to pay back at a rate of $20 per month.

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Does a rhombus have parallel lines

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What is 5,000 in scientific notation?

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The kindergarten teacher wants to divide 1/2 of her classroom into 5 equal sections for stations