What is 12x36 I don’t know what it is and I’m stuvk

What is the correlation coefficient between the variables? round to three decimal places. enter your answer in the box

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?

You buy 4 items that cost 2.69 14.45 8.05 13.95 what is the estimated total round to the nearest dollar