Which of the following fractions is equivalent to 0.45? 4/5 2/5 9/20 9/200

Aplot of land is shaped like a quadrilateral. fences are built on the diagonal to divide the area into 4 sections. what is vi to the nearest tenth? gv = 6.55fv = 5.84vh = 3.27vi = ?

Find the center and the radius of the circle with the equation: x^2-2x+y^2+4y+1=0?

Through non-collinear points there is exactly one plane.