A
the word 'of' means to multiply
0.45 × 80 = 36
Required potynomial = (x -5)(x - 3 - 2i)(x - 3 + 2i) = (x - 5)(x^2 - 6x + 13) = x^3 - 6x^2 + 13x - 5x^2 + 30x - 65 = x^3 - 11x^2 + 43x - 65
g - 3/7 = 2/7 is an equation.

D because the shaded region has one side and subtract by pie and substitute to get this answer.
Area of a triangle = 1/2 x base x height
--------------------------------------
Find Height :
--------------------------------------
3.75 = 1/2 x 2.5 x height
3.75 = 1.25 x height
height = 3.75 ÷ 1.25
height = 3 meters
----------------------------------------------------------------------------
Answer: The height is 3 meters.
----------------------------------------------------------------------------