What are the domain and range of the function f(x)=-3(x-5)squared+4

Anyone know? will mark brainliest if you're correct!

2.5 milligrams is equivalent to how many grams

Will mark determine whether the conjecture is true or false. give a counterexample for any false conjecture. given: points r, s, and t conjecture: r, s, and t are coplanar. a) false; the points do not have to be in a straight line. b) true c) false; the points to not have to form right angles. d) false; one point may not be between the other two.