If pqrs is a rectangle and mrsq = 36, what is the value of x?

a. 54
b. 108
c. 94
d. 72
e. 36
f. cannot be determined

Both the red and blue line segments stretch from the center of the circle to a point on the circle. the length of the blue segment is 5. how long is the red line segment?

If f(x)=2x-6 and g(x)=3x+9, find (f-g)(x)

If the speed of an electromagnetic wave is 100,000 cm/s and its wavelength is 100 cm, what is its frequency? a) 100,000 cycles per second (hz) b) 1 × 10-3 cycles per second (hz) c) 10,000,000 cycles per second (hz) d) 1,000 cycles per second (hz)