The diagram represents three statements about animals at the zoo: p, q, and r.

for how many animals is (p ∨ q) ∧ r true?

15
17
20
22

The hawaiian alphabet has 12 letters. how many permutations are posible for each number of letters?

What is the number 321,000,000 in scientific notation? also what is the number? ?

Aword processing program requires a 7- digit registration code made up of the digits 1,2,4,5,6,7 and 9 each number has to be used and no number can be used mor than once how many codes are possible