If the height of the cylinder is halved and the diameter is double, by what factor will the volume of the cylinder change

Hi my sisters and brothers can tell me the answer because i don’t understand the question

The angle of a triangle are given as 6x,(x-3), and (3x+7). find x then find the measures of the angles

Find the directions in which the function increases and decreases most rapidly at upper p 0p0. then find the derivatives of the function in these directions. f(x, y)equals=x squared plus xy plus y squaredx2+xy+y2, upper p 0p0left parenthesis 1 comma negative 4 right parenthesis