Write ratio in simplest form . 5km : 450 cm

Determine whether the quadrilateral below is a parallelogram. justify/explain your answer (this means back it up! give specific information that supports your decision. writing just "yes" or "no" will result in no credit.)

Which expression shows the sum of the polynomials with like terms grouped together

If f(x) = 4x - 3 and g(x) = x + 4, find (f - g) (x)