HELP ME PL

Which is a well-written research question?
A) What makes dolphins act so funny?
B) How do dolphins differ biologically from porpoises?
C) Why don't people ever get tired of studying dolphins?
D) Why are dolphins so often listed a person's favorite animal?

Mary beth used the mapping rule to find the coordinates of a point that had been rotated 90° counterclockwise around the origin. examine the steps to determine whether she made an error. m (3, –6) is rotated 90° counterclockwise. (x, y) → (–y, x) 1. switch the x- and y-coordinates: (6, –3) 2. multiply the new x-coordinate by –1: (6(–1), –3) 3. simplify: (–6, –3) .

Aright cylinder has a diameter of 8 m and a height of 6m. what is the volume of the cylinder

Mia’s gross pay is 2953 her deductions total 724.15 what percent if her gross pay is take-home pay