Select the shapes which have at least one line of symmetry.

Tim's phone service charges $23.06 plus an additional $0.22 for each text message sent per month. if tim's phone bill was $28.56, which equation could be used to find how many text messages, x, tim sent last month?

Which expression do you get when you eliminate the negative exponents of 4a^2 b^216a^-3 b

What is the slope of the line shown below?