7. [-11 Points] DETAILS TANAPCALCIO 3.6.050. MY NOTES PRACTICE ANOTHER Volume of a Cube The volume V of a cube with sides of length x in. is changing with respect to time. At a certain instant of time, the sides of the cube are 7 in. long and increasing at the rate of 0.3 in./s. How fast is the volume of the cube changing (in cu in's) at that instant of time? cu in/s Need