its true because -1 to even power is positive, -1 to odd power is negative
Dont know the firat question but the propability is 43 out of 100 percent
2a because with 18a and 20ab they both have "a" in common and they are even thus multiples of 2 leaving you with 2a(9,10b)
G=61°, h=9. the opposite angles are equal, and the opposite sides are equal.
The answer should be 4x+ 17 > x - 1
