Which choice below is NOT a possible feature of a conjecture? It's a falsehood
It's a question
It's a declarative statement
It's the truth.

The correct option is;

It's a falsehood

Step-by-step explanation:

A conjecture is a form of declarative statement or proposal that is guessed as being correct or the truth based on the available evidence that contributes to the correctness of the statement but is yet have a disproof or proof

Therefore, a conjecture can be correctly the truth, a declarative statement based on observation or a question but not a falsehood because then it will not be based on any logical supporting evidence.

a complex number is a number that can be expressed in the form a + bi, where a and b are real numbers, and i is a solution of the equation x2 = −1. because no real number satisfies this equation, i is called an imaginary number. has no real solution, since the square of a real number cannot be negative.

8(-10x+3.5y-7)

8×-10x + 8×3.5y + 8×-7

-80x + 28y - 56

therefore

-80x+28y-56 is the correct answer