2−b/3=−5/2 what is b? Note: the / is a fraction separation

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.

If f(x)=x+7 and g(x)=1/x what is (fog)(x)

What is the approximate value of  x  in the equation below.–3.396–0.7080.3040.955