Find the distance between the two points rounding to the nearest tenth (if necessary). (0,1) and (-5,7)

The? half-life of a radioactive substance is 20 years. if you start with some amount of this? substance, what fraction will remain in 120 ? years

If u good at math hit me up on insta or sum @basic_jaiden or @ and

Which function in vertex form is equivalent to f(x) = x2 + 6x + 3? f(x) = (x + 3)2 + 3 f(x) = (x + 3)2 − 6 f(x) = (x + 6)2 + 3 f(x) = (x + 6)2 − 6