If f(x) = 4x2 + 1 and g(x) = x2 - 5, find (f - g)(x). O A. 34² - 4
O B. 3x2 + 6
C. 5x2 - 6
O D. 5x2 - 4

Which expression is equivalent to -5(3x - 6/7)

Cos^2x+cos^2(120°+x)+cos^2(120°-x)i need this asap. pls me

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.