AB is tangent to circle o at B. Find the length of the radius r for AB = 9 and AO = 13. Round to the nearest tenth if necessary.

International calls require the use of a country code. many country codes a 3-digit numbers. country codes do not begin with a 0 or 1. there are no restrictions on the second and third digits. how many different 3-digit country codes are possible?

Kyle and elijah are planning a road trip to california. their car travels 3/4 of a mile per min if they did not stop driving, how many miles could kyle and elijah drive in a whole day? ? 1 day = 24 hours. plzzz i will give you 100 points

For the inequality |c| < |d| to be true, which of the following must be true?