If set a = {3, 4, 7, 9} and set b = {8, 9, 10, 11}, then a∪b is
{9}

{3, 4, 7, 8, 10, 11}

{3, 4, 7, 8, 9, 10, 11}

The probability of winning something on a single play at a slot machine is 0.11. after 4 plays on the slot machine, what is the probability of winning at least once

The price of an item has been reduced by 30%. the original price was $30. what is the price of the item now ?

What is another way to express 36 +32