Answer:
Step-by-step explanation:
Given
See attachment for ski trails
Required
Total length of 
ski trails
From the attached figure, there are 3 skis with length 
So:
The total length is:
Express fraction as improper fraction
Answer: B
Step by Step
5y + 6 = -3X
5y = -3X - 6
Y = -3/5X -6/5
Perpedicular is the flip of your slope so -3/5 becomes 5/3X
4,000,000,000 + 700,000,000 + 0 + 0 + 900,000 + 30,000 + 0 + 0 + 0 + 2
2 ≤ 2w +4 ≤ 12
Subtract 4 from all 3 terms:
-2 ≤ 2w ≤ 8
Divide all 3 terms by 2:
-1 ≤ w ≤4
Complementary angles add up to 90 degrees.
So to find A you would need to add A and B together and equal it to 90 (3x+25+5x-7=90)
Combine like terms together (8x+18=90)
Subtract 18 from night sides (8x=72)
Divide by 8 on both sides (x=9)
Then to find A substitute x into its equation (3(9)+25)=(27+25)=52
A=52 I think
