The surface areas of two similar figures are 4 in and 9 in if the volume of the smaller one is 216 then what is the larger ones volume

How do i start to solve? would appreciate a walk-thru! a bird sitting 16ft above the ground in an apple tree dislodges an apple. after how many seconds does the apple land on the ground? (assuming that no branches will interfere with it's fall)

Astudent was asked to find the square of 7x+3. the student quickly wrote (7x+3)^3= 49x^2+9. identify the student's error and provide the correct answer.

If wxyz is a square, which statements must be true? plz < 3