If 2+2=21 what does 21=

Which must be true in order for the relationship △zyv ~ △xwv to be correct? zy ∥ wx ∠z ≅ ∠y and ∠w ≅ ∠x zv ≅ vy and wv ≅ vx ∠z ≅ ∠x and ∠w ≅ ∠y

Find the maximum value of p= 4x + 5y subject to the following constraints :

Using graph paper, determine the line described by the given point and slope. click to show the correct graph below.(0, 0) and 2/3