How can you determine if two expressions are equivalent?

What is the average diastolic blood pressure for adults

Aline passes through the point (–7, 5) and has a slope of 1/2 which is another point that the line passes through?

Consider an example of a deck of 52 cards: example set of 52 playing cards: 13 of each suit clubs, diamonds, hearts, and spades ace 2 3 4 5 6 7 8 9 10 jack queen king clubs diamonds hearts spades what is the probability of drawing three queens from a standard deck of cards, given that the first card drawn was a queen? assume that the cards are not replaced.