Hello I am weak at maths! today was my math exam and I didn't do it well. Please help me daily when I ask questions in an easy manner so that I can understand well. Accept my humble request

The graph shows the distance y, in inches, a pendulum moves to the right (positive displacement) and to the left (negative displacement), for a given number of seconds x. how many seconds are required for the pendulum to move from its resting position and return? enter your answer in the box.

Anna is constructing a line segment that is congruent to another segment ab. for the construction, which tool should be used to mesure segment ab

Atemperature of 1.64◦f corresponds to answer in units of ◦c.