Which property can you use to show that 3x +{2x+4} is equivalent to {3x + 2x} + 4

(if f(x)=4x^2 and g(x)=x+1, find (f o g)(x)

This is a map of the mars exploration rover opportunity predicted landing site on mars. the scale is 1cm : 9.4km. what are the approximate measures of the actual length and width of the ellipse? i mostly need to know how to set it up : )

If m_b=mzd= 43, find mzc so that quadrilateral abcd is a parallelogram o 86 137 o 129 43 description