How many passes will it take to find 12 using a binary search? 8, 10, 12, 14, 16, 18, 20 1 3 4 2

3 passes

Explanation:

Binary search halves and halves an ordered list of numbers until the value being searched is found.

14 is the middle number. it is larger than 12 so we look at the left side

10 is the middle number of the left side it is smaller than 12 os we look at the right side

12 is the middle number between 10 and 14 and it is also the number we are trying to find.

no. when the asker posts the question they can make a question worth what ever they think is a fair price. although it must be within the limit of the points they currently own. 5 is the minimum number of points a question can be worth. if a question is complicated or has lots of parts to it, it is better to make it worth more because more people will be more willing to answer.

hope this !

that would be my answer.