Starting at sea level, a submarine descended at a constant rate to a depth of −3/4 mile relative to sea level in 5/8 minutes. The submarine continues to descend at the same rate. What is the submarine's depth relative to sea level after the first minute?

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.

Find the value of x for which abcd must be a parallelogram -9-6x x-30

The perimeter of a movie screen is 54 meters. the screen is 18 meters wide. how tall is it?