Answer: A, B, C.
If the stack of cards are shifted so it is not straight, it still has everything the same.
Los 12 rayos hijo el
azul, rosa, dorado, blanco, verde, oro rubí, violeta, oro naranja, lila esmeralda, dorado solar (blanca), melocoton solar (dorado sol), cristal celeste (diamante),
The speed of the airplane is the ratio of the distance to the time
The initial average speed of the airplane is approximately 110.8 mph
Reason:
Given parameters are;
The distance between Portland Oregon and Seattle Washington = 145 miles
The decrease in travel time when the speed is increase by 20 mph = minutes
The initial speed of the airplane, v = Required;
Solution;


Therefore;

Which gives;

Therefore
0.2·v² + 4·v - 2,900 = 0
v ≈ ±110.8 mph
The initial average speed of the airplane, v≈ ± 110.8 mph
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