Which equations support the fact that rational numbers are closed under addition? Select each correct answer.

3√5+√5=4√5

√10 + (-√10) = 0

1/2 + 0.5=1

3√16 + 3√16=6√16

Nick bought some sneakers that were 15% off the regular price of $120. If an 8% sales tax was added to the cost of the sneakers, what was the total price nick paid?

Mauna Kea is the tallest mountain on Earth. It is 13,796 ft. above sea level and 17,000 ft. below sea level. Which expression represents its total height? A. (-13,796) + - 17,000 B. 13,796 + (-17,000) C. 13,796 + | (-17.000) | D.|13,796 + (-17.

Connor has three dollars more than she in two dollars more then share Jan has one dollar less than share together they have $28 how much does Connor have

The area of a rectangle is 4y + 10. A. Represent the area of the rectangle in factored form. B. Use the factored form to give one possible set of dimensions for this rectangle. The A and B are instructions.

What is the slope of the line through (-4,-1) and (2,-7) your answer must be exact

Creat a table of values for the equation y=-x-3

Draw a X over the multiples of 10. What digit do all multiples of 10 have in common?

Expanded form of 582, 030

Which statement describes the graph and system of equations? 3y-x=2 9y-3x=6 a. not enough information b. coincident c. consistent and independent d. inconsistent

The diagram represents the factorization of a2 + 8a + 12. What is the missing number that will complete the factorization? a2 + 8a + 12 = (a + 2) (a + )