Factorise x^2-3xy-18y^2

pl it's urgent

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.

On average, how many more hits will he get when he bats 100 times at home during the day as opposed to 100 times away at night?

Describe how you can act financially responsible.