SECTION 1-5 CONVERTING UNITS 20. Rank the following speeds in order of increasing magnitude. Indicate ties where appropriate. (a) 0.25 m/s, (b) 0.75 km/h, (c) 12 ft/s, (d) 16 cm/s. 21. . The Ark of the Covenant is described as a chest of acacia wood 2.5 cubits in length and 1.5 cubits in width and height. Given that a cubit is equivalent to 17.7 in., find the volume of the ark in cubic feet. 28. Predict/Calculate Many highways have a speed limit of 55 mi/h. (a) Is this speed greater than, less than, or equal to 55 km/h? Explain. (b) Find the speed limit in km/h that corre- sponds to 55 mi/h. 29. . . BIO Mantis Shrimp Peacock mantis shrimps (Odontodactylus scyl