Carry out the following conversions:
(a) 1.42 light-years to miles (a light-year is an astronomical measure of distance-the distance traveled by light in a year, or 365 days; the speed of light is 3.00 x 108 m/s),
(b) 32.4 yd to centimeters,
(c) 3.0 x 1010 cm/s to ft/s.