Given [-1 -2 3 4 8 -6 0 1 5 ] and B=[-5 -1 6 4 1 2 0 -3 2]

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?

The weight v of an object on venus varies directly with its weight e on earth. a person weighing 120 lb on earth would weigh 106 lb on venus. how much would a person weighing 150 lb on earth weigh on venus?

What is the best approximation for the area of a circle with a radius of 4 m ? use 3.14 to approximate pi