I did not even read this because im too very lazy but it is prolly easy so can you help me please its due today Which of the following is true about this mathematical statement: 2x + 9 = 7 + x ?
A. It is an equation because it has an equal sign.
B. It is an equation because it has the variable x.
C. It is an expression because it has an equal sign.
D. This is an equation because it has a mathematical operation sign.

D

Step-by-step explanation:

this is an equation because it has a mathematical operation sign( equal )

a triangular prism is a 3 dimensional shape composed of triangles and rectangles. it is made from two triangular bases and three rectangular sides.  

think about the doctor who treated the major and the speaker in the short story "in another country." put yourself in the shoes of the doctor, and based on what you read in the story, write what you think his thoughts about the major and the speaker would be. use the following vocabulary in your response and change the form of these words as needed: detached resign withered