calculate the cross elasticity of demand for good X when the price of good z increases from RM2.50 to RM3.00 . State the relationship between Z and X

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

Write 5(6x+4)-2(5x-2) in the form a(bx+c) where a, b and c integers and a> 1

The birth weights of newborn babies in the unites states follow in a normal distrubution with a mean of 3.4 kg and standard deviation of 0.6 kg. reaserches interested in studying how. children gain weights decide to take random samples of 100 newborn babies and calculate the sample mean birth weights for each sample