If the number you are rounding is followed by 5, 6, 7, 8, or 9, round the number up (+1).
If the number you are rounding is followed by 0, 1, 2, 3, or 4, round the number down (no change).

Actually Welcome to the Concept of the Isosceles triangles.
Since, the sides are equal, we can equate them, so we get as,
==> 16x + 13 = 24x -19
=> 24x -16x = 13+19
=> 8x = 32
x = 4
hence ==> x = 4.
Log3(x)=0 so 3^0=x which is 1
log3(x)=-2 so 3^-2=x which is 1/9
log3(x)=4 so 3^4=x which is 81
This is possibly the answer
Answer:
Step-by-step explanation:
Distributive Property
commutative property of addition.
assosciative property of addition