Please help!- this is 20% of my grade so I can pass 7th grade

12. decide whether each statement is always true, sometimes true, or never true. a. when corresponding points of an original figure and its reflection are connected, the resulting segments are all perpendicular to the line of reflection. b. when a point is reflected over a horizontal line, the y-coordinate of the point stays the same. answer both questions and explain

Which of the following scenarios demonstrates an exponential decay

Alex measured the length of an item to be 3.7 cm. the actual length is 3.5 cm. what is alex’s percent error?