Item 9 a company that offers tubing trips down a river rents tubes for a person to use and “cooler” tubes to carry food and water. a group spends $270 to rent a total of 15 tubes. write a system of linear equations that represents this situation. use xx to represent the number of one-person tubes rented and yy to represent the number of cooler tubes rented. how many of each type of tube does the group rent?

Is there a direction u in which the rate of change of f(x, y)equals=x squared minus 3 xy plus 4 y squaredx2−3xy+4y2 at p(1,2) equals 14? give reasons for your answer. choose the correct answer below. a. no. the given rate of change is smaller than the minimum rate of change. b. no. the given rate of change is larger than the maximum rate of change. c. yes. the given rate of change is larger than the minimum rate of change and smaller than the maximum rate of change.