2 the answer is two I put it in the calculator
Answer:

Step-by-step explanation:
Given:

Distribute to remove parentheses:

For simplification and clarity, reduce all mixed numbers to simplified common fractions:

Combine like terms:

Add 6/5 to both sides, then add 9/5x to both sides:

Divide both sides by -3/5 to isolate x (recall dividing by a number is equal to multiplying by its reciprocal):

B. 1/30
Explanation: First you find the probability of picking a yellow marble, 1/6. Then you multiply the probability of picking a blue marble, 1/5 since there are now only five marbles total. Then multiply those to see what the final probability is, 1/6*1/5=1/30.
Multiply 478 by 3 and you get 1,434 miles