Ryan wants to find the favorite video game of the fifth grade boys at nis Which group would be BEST for Ryan to survey?

The vector matrix [2/7] is dilated by a favor of 1.5 and then reflected across the x axis. if the resulting matrix is [a/b] then a= and b=

Express in the simplest form: (x^2+9x+14/x^2-49) / (3x+6/x^2+x-56)

What is the expression in factored form? 225x^2 - 144 a. 9(5x+4)^2 b. 9(5x-4)^2 c. 9(4x+5)(4x-5) d. 9(5x+4)(5x-4)