What least common multiple of 17 24 53?

School has 204 sixth grade students. if the sixth grade is 30% of the total school, how many students are in the middle school?

What is the axis of symmetry of the function f(x)=-(x+ 9)(x-21)

Select the correct answer from each drop-down menu. a system of equations and its solution are given below. system a complete the sentences to explain what steps were followed to obtain the system of equations below. system b to get system b, the equation in system a was replaced by the sum of that equation and times the equation. the solution to system b the same as the solution to system a.]