How do you simplify 8+(9t+4)

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.

Which of the symbols correctly relates the two numbers below check all that apply 6? 6

Multiply. write your answer in simplest form. 3/8 x 5/7