I need help somebody please help me ill give brainlist’s, this is on math: (more than 1 answer or just 1 answer)

Which number(s) are 3 units from zero on a number line?

1. 6
2. 3
3. 1\3
4. -3

what number? 1,2,3, or 4?

A33 gram sample of a substance that's used to detect explosives has a k-value of 0.1473. n = noekt no = initial mass (at time t = 0) n = mass at time t k = a positive constant that depends on the substance itself and on the units used to measure time t = time, in days

If the endpoints of the diameter of a circle are (8, 6) and (2,0), what is the standard form equation of the circle? a) (x + 5)2 + (y + 3)2 = 18 (x + 5)2 + (y + 3)2 = 3.72 (x - 5)2 + (y - 3)2 = 18 d) (x - 5)2 + (y - 3)2 = 32

Ineed someone to me answer my question i have to have this done and knocked out