An abstract class can
a) implement an interface
b) extend another abstract class
c) extend another regular class
d) a and b
e) a and c

In a cellular network each cell is controlled by a tower what are these towers called?

The three logical operators used to write compound conditions are "and," "or," and "not." a: true b: false

Ihave a singular monitor that is a tv for my computer. recently, i took apart my computer and put it back together. when i put in the hdmi cord and booted the computer to see if it worked, the computer turned on fine but the screen was blue with "hdmi no signal." i've tried everything that doesn't require buying spare parts, any answer is appreciated!