Ellis purchased $74.62 worth of party supplies. He paid with at
$100 bill. How much change
does he receive?

How can you find the conditional probability of a given b as the fraction of b’s outcomes that also belong to a, and interpret the answer in terms of the model? i just need a good explanation

The square pyramid has a volume of 441 cubic inches. what is the value of x? 1/7x is the height x is the base

Donald has x twenty-dollar bills and 11 ten-dollar bill. how much money does donald have? write your answer as an expression.