Question

Which of the following is not an inequality?

A
435 ≥ 5p + 4

B
g - 7 < 100

C
18x + 9y

D
a > 6b

Answer 1

Answer: 18x + 9y (choice C)

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Step-by-step explanation:

An inequality must have one of the four symbols

<

>

`\le`

`\ge`

which are "less than", "greater than", "less than or equal to", and "greater than or equal to" in that exact order. Choices A, B and D have one of these symbols which makes them inequalities. We can cross them off the list. Choice C does not have any of the four symbols mentioned, so it's not an inequality. Instead, choice C is a mathematical expression, or we can say "expression" for shorthand.

Answer 2

C is the correct option