108 identical books have a mass of 30 kg. Find the mass of 150 such books
the number of such books that have mass of 20 kg

Using two or more complete sentences, describe how you can find a vector parallel to b=-2,3

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.

Sarah used her calculator to find sin 125 degrees. she wrote down sin sin125 degrees.57. how could sarah recognize that her answer is incorrect?