Answer
50 miles:) I'm positive but there may be a chance it's 200

1) Let's simplify those expressions making use of exponents rules:

Note that the exponent outside the parenthesis is 'distributed' over each term inside.
2) Similarly for the second expression we can state that:
You must divide both sides by 3,and you get 3/4.
Answer:
60
Step-by-step explanation:
x and 2x are co - interior angles, sum of co - interior angles is 180,
x + 2x = 180
3x = 180
x = 180 / 3
x = 60