I need help on this math question please I’m on a quiz

Graph the linear function using the slooe and y intercept

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

The difference of two numbers is 40. find the numbers if 0.3 parts of one number is equal to 37.5% of the other one.