Answer:
ionosphere
Step-by-step explanation:
In radio communication, skywave or skip refers to the propagation of radio waves reflected or refracted back toward Earth from the ionosphere, an electrically charged layer of the upper atmosphere
Riddle 1 is 436.
Riddle 2 is 79
Answer:
$8 for each tickets
Step-by-step explanation: 60/5 equals 12
Each friends have $12
12-4=8
Each ticked cost 8 dollars.
y - 0 = 5(x-4)
y = 5x-20
5x - y = 20 Standard Form