What is the side length of a square with half the area of a square with area 198? a) 6 mm b) 7mm c) 8mm d) √198 e) none of these

What is the approximate total length of iron edging needed to create the square frame and the two diagonals?

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.

What are two numbers that have a sum of 15