Answer:
1/10
Step-by-step explanation:
first you find the common denominator.
multiply 1/2 by 5 and 2/5 by 2
now you have 5/10-4/10
now its easy and the answer is 1/10
2y - 8x = 18
2y = 18 + 8x
y = 8x/2 + 18/2
y = 4x + 9
244,330 feet
Please refer to the image attached for explanations