What is the rate of change in length in feet per inch

4. a spring scale is constructed so that each 0.10-n increment is separated by 0.50 cm. what spring constant is necessary for the scale to be accurate? -1.0n/cm -0.10n/cm -9.8 n/cm -0.20n/cm

What is the equation of a line passing through the point (6,1) and parallel to the line whose equation 3x=2y+4

17 in long 1.3 ft wide and 8in high what is the volume