The order of operations is PEMDAS (parenthesis, exponents, multiplication/division, addition/subtraction). This means that you do multiplication before adding, so 3 + 4*6 is the same thing as 3 + (4*6). Because of this, Omar did not need to use a grouping symbol.
Nope. Omar was perfectly correct. You see hes correct because 3 more than the product of 4 and 6 you do that first 6 times 4 because there in parenthesis. Then you add 3 and that would be your answer.
Half of the 14 brown eggs are cracked so there are 7 cracked eggs. There are 7+14=21 eggs in total so the probability of getting a cracked egg that is brown is 7/21=1/3