What is the length of BC?
O 11
O 23
O 40
O 60
Plz help

If x = 12 and y = 3, what is the value of x - y 2? 81 6 3 18

2x - 20 = 32 20 - 3x = 8 6x - 8 = 16 -13 - 3x = -10

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?