How long will it take for a radio wave to travel 900 km?
the speed of radio waves is 3x10^8 m/s

time is distance/ speed

Step-by-step explanation:

time= (900×1000)/(3×10^8)

0.003 seconds

$650 per month plus utilities

step-by-step explanation:

just based on the info you gave, it would seem more cost effective to rent at $650 per month plus utilities.   if utilities are, in fact, $150 per month, your monthly living costs would be $800 as opposed to the other option of $825.

ca = ec

cpctc makes it so that corresponding parts of the triangle you proved to be equal are equal, the other options aren't part of the part of the triangles you proved to be equal.