The speed of light is about 299,792,458 m/s
And 394,000km = 384,000,000m...... and since the light beam must travel twice this distance, we have.......
Distance / Rate = Time ...... 2(384,000,000) / 299,792,458 = about 2.56 sec
We can use the tangent inverse here
tan-1(3/5) = about 30.96° ..... tihis angle could also be a third quadrant angle, i.e. 210.96°
This is the bsic graph of f(x) = √x shifted to the left four units and up one unit.....
Here are both graphs.....https://www.desmos.com/calculator/fhcheqj7uz
12 + 1/4 = 49/4
So ..... (49/4) / (7/8) = (49/4) x (8/7) = (49/7) x (8/4) = 7 x 2 = 14 signs
If we assume that there is also a sign at the very beginning, we can add 1 to this = 15 signs
Check for yourself......
Does ..... 12^2 + 24^2 = 25^2 ???
The circumference of the Earth at the equator = 40,075.16 kilometers = about 40,075,160 m
The speed of light = 299,792,458 m / s
So .. Distance /Rate = Time ... 40,075,160 / 299,792,458 = about .134 seconds
$62.50 / 5 = $12.50 per tour.....so.......
$500 / $12.50 = 40 tours
Nice one, Melody......!!! [ I always like to try to figure these out ]
