Mikisha traveled from tampa to miami a distance of 280 miles on one tank of gas if her tank holds about 13 gallons of fas ehat was her mile per gallon rate to the nearest whole number

Consider u = {x|x is a negative real number}which is an empty set? o {x|x eu and x has a negative cube root}o {x|x eu and x has a negative square root}{x|x eu and x is equal to the product of a positive number and -1}{x|x eu and x is equal to the sum of one negative and one positive number?