Answer:
x=20
Explanation:
3x-10+5x+30=180 (co-interior angles=180)
8x+20=180
8x=160
x=20
Typhoon, they only occur in the pacific ocean.
To change the equation, you'd have to take the square root of both sides. When you do this, x^2 cancels out leaving you with x = sqrt(y)
If you need help on the other ones, all you have to do is solve for x by using either addition/subtraction or dividing/multiplying.
The winds that pushing the sasiling ship from north, but they are also curving to west. theses winds are known as : d. polar easterlies.
polar easterlies is the wind are blowfrom east to west.
hope this help