Which algebraic expression represents "the sum of a number and 9"?

n minus 9

n + 9

9 n

StartFraction n Over 9 EndFraction

What is the simplest form of this expression? 2 (-2n+1) + 2

Which line has an x-intercept of 4? 2 x + 2 y = - 8 4 x + y = 8 -2 x + 2 y = - 8 -4 x + y = 8

In your own words, explain the place-value relationship when the same two digits are next to each other in a multi-digit number

Don ate 1/2 cup of vegetables. This was2/3 of a serving. What is the unit rate in number of cups per serving?

Two radar stations that are 25 miles apart and are both tracking a plane. At a given moment, the angle between station 1 and the plane is 73 degrees, the angle between station 2 and the plane is 46 degrees.

Which sentence is the most accurate definition of an identity? An identity is an equation that is true for all real numbers. An identity is an equation that is true for all real values in its domain.

How do I simplify - 5 (3p+3) + 9 (-7+p)

Round each number to the place indicated. Draw a number line to support your decision. 1. 0.235; Round to the nearest tenth 2. 3.492; Round to the nearest hundredth 3. 8.0769; Round to the nearest thousandth

What is 25 divided by 5

Bert and Ernie are missing each other and their friend Big Bird They want to meet at Big Bird's nest which is halfway from their apartments.