Answer:
10 meters
Step-by-step explanation:
To calculate area of the triangle we multiply height with base and that divided by two
90 = (18 × w) ÷ 2
180 = 18w
w = 10 meters
-2.5
5(x+2) = 3x+5
5x+10=3x+5
5x-3x=5-10
2x=-5
x=-2.5
