x can be Option A because underroot of 125 is more than 12. x cannot be option b because the under root of 144 is 12 and this wont be an inequality. x cannot be Option C or D as the under root will be smaller X is Option E because the under root will be more X is not F as the under root of 143 is less Option A and E
Well if she earned the same amount per hour the hours can be added. 2.25 + 3.25 = 5.5 hours. To get the rate of earning per hour you would then divide the total made by the total time worked. 42/5.5 = $7.64 approximately.