ashland jones asked 9/27/2011 The admission fee at an amusement park is $1.50 for children and $4.00 for adults. On a certain day, 2,100 people entered the park, and the admission fees that were collected totaled $4,900. How many children and how many adults were admitted?
ashland jones asked 9/27/2011 Solve the system, or show that it has no solution. (If there is no solution, enter NO SOLUTION. If there are an infinite number of solutions, enter the general solution in terms of x, where x is any real number.) 4x-6y=14 -6x+9y=-21?
ashland jones asked 9/6/2011 Find all solutions, real and complex, of the equation. (Enter your answers as a comma-separated list. If there is no solution, enter NO SOLUTION.) x^6+36x^4-9x^2-324=0?