Work out the area of a triangle of base 7.5 and height 6cm

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.

In the rectangle below ac=30 units what is de

Find the commission on a $590.00 sale if the commission is 15%.