I believe number one is 1400
Circle = perpendicular cross section of a cylinder
cone = perpendicular cross section of a pyramid
An expression which is represented by the diagram (see attachment) is: A. -6 - (-1).
<h3>What is an expression?</h3>
An expression can be defined as a mathematical equation which is used to show the relationship existing between two or more variables and numerical quantities.
By critically observing the diagram (see attachment), we can logically deduce the following information:
- There are a total of 6 negative tiles.
- Among the 6 negative tiles, 1 tile is crossed out.
In this context, we can the diagram (see attachment) by using the following expression:
-6 - (-1)
Read more on expressions here: brainly.com/question/17361494
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Answer:
it should be y=9x.
Step-by-step explanation:
Because the money side is multiplying by 9.