Which expression is equivalent to (9x2 + 2x-7)(x-4)2
O A. -4x19x + 2x - 7)
O B. (9x2 + 2x-7)(x) + (9x + 2x-7)(-4)
O C. x9x + 2x - 7) + 497 + 2x - 7)
O D. x19x2 + 2x - 7) - 4

Which of the following is true for the relation f(x)=2x^2+1

Lucy is a dress maker. she sews \dfrac47 7 4 of a dress in \dfrac34 4 3 hour. lucy sews at a constant rate. at this rate, how many dresses does lucy sew in one hour? include fractions of dresses if applicable

Which equation expression the relationship between the number of boxes b and the number of cans c and the proportion is 48