Alocal ophthalmologist is treating one of his patients for a post-lasik eye infection that is not responding to topical ciprofloxacin. these infections, although rare, can occur after laser in situ keratomileusis (lasik) surgery for vision correction. topical amikacin sulfate has been shown to be effective for the treatment of eye infections due to ciprofloxacin-resistant pseudomonas, burkholderia ambifaria, mycobacterium chelonae, and mycobacterium fortuitum. the ophthalmologist prescribes 60 ml of a 2.5 % amikacin sulfate isotonic solution, two drops in the affected eye every 2 hours amikacin sulfate usp (c22h43ns013-2h2s02), m. w, 781.76, e 0.108, is anaminoglycoside-type antibiotic containing three lons. how many milliters of 23.5 % sodium chloride injection should be used to obtain the amount of sodium chloride needed? answer with two decimal places

An annual marathon covers a route that has a distance of approximately 26 miles. winning times for this marathon are all over 2 hours. the following data are the minutes over 2 hours for the winning male runners over two periods of 20 years each. earlier period 14 12 15 22 13 10 19 13 9 14 20 18 16 20 23 12 18 17 6 13 recent period 7 11 7 14 8 9 11 14 8 7 9 8 7 9 9 9 9 8 10 8 (a) make a stem-and-leaf display for the minutes over 2 hours of the winning times for the earlier period. use two lines per stem. (use the tens digit as the stem and the ones digit as the leaf. enter none in any unused answer blanks. for more details, view how to split a stem.) minutes beyond 2 hours earlier period 0 1 2 (b) make a stem-and-leaf display for the minutes over 2 hours of the winning times for the recent period. use two lines per stem. (use the tens digit as the stem and the ones digit as the leaf. enter none in any unused answer blanks.) minutes beyond 2 hours recent period (c) compare the two distributions. how many times under 15 minutes are in each distribution