Of all the species in the world, 4 out of every 5 are insects.
what percentage of species are insects?

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.

Anyone know? will mark brainliest if correct!

10% of 1,900,000. show me how you got the answer