Which is true about all expressions? contain variables contain only numbers are the same as equations do not include an equal sign

Expressions do not have an equal sign (although they can have operators such as plus or minus).

is an expression.

is an equation since it has an equal sign.

[2, 2.5)

(2.5, 3]

step-by-step explanation:

i think its these two not sure [2, 2.5)

(2.5, 3]

step-by-step explanation: hi!