90 students went to the zoo three had a hot dog, soda and a popsicle ; 24 have a hot dog; five had a hot dog and soda; 33 had a soda ; 10 had a soda and popsicle; 38 had a popsicle ; eight had a popsicle and a hot dog. how many students did not have nothing? ?

Acable company wants to provide cell phone service for residents on an island. the function for the cost of laying the cable from the island to the mainland is c(x)= 6.500 square root x2+4, where x represents the length of the cable in feet. what are the domain and range of the function? a) domain: all real numbers range: all real numbers greater than or equal to 17,000 b) domain: all real numbers greater than or equal to 0 range: all real numbers greater than or equal to 17,000 c) domain: all real numbers greater than or equal to 0 range: all real numbers greater than or equal to 13,000 d) domain: all real numbers greater than or equal to 13,000 range: all real numbers greater than or equal to 0

What does x = in this equation x+3+2x=x+5

What percent of 18 is 24? and plz explain thx.