The graph shows rectangle ABCD and rectangle EFGH. Rectangle EFGH is the
image of a transformation of rectangle ABCD.
What is the scale factor of the transformation?

Rose drew a regression line for this paired data set. her line passed through (1, 2) and (3, 5) . what is the equation of rose's regression line?

How do you solve a question like this?

Tim's phone service charges $26.39 plus an additional $0.21 for each text message sent per month. if tim's phone bill was $31.64, which equation could be used to find how many text messages, x, tim sent last month?