Which of these is not a way to think about finding ‐12−7?

answers: the number 7 units to the left of -12 on the number line, changing the signs and the operation 12+ -7, the negative distance between -12 and 7 on the number line, or the addition expresstion -12+ -7

Which of the following transformations will make coincide with ? a. counter-clockwise rotation 90º about a, followed by a translation 5 units to the right b. translation 5 units to the right, followed by a reflection across the y-axis c. translation 5 units to the right, followed by a reflection across the x-axis d. translation 1 unit up and 5 units to the right, followed by a reflection across the x-axis