19. Currently, telephone area codes are three-digit numbers whose middle digit must be 0 or 1
Codes whose last two digits are l's are being
used for other purposes, for example, 911. With
these conditions, how many area codes
are
available

the correct answer is 5

the answer for this question is : 360°

step-by-step explanation:

we have been given a triangle   we need to tell which one of these is a triangle below to map onto itself.

360° rotation is the complete rotation which eventually leads to the same figure which is given.

the correct will be, that is 360° that will cause the triangle below to map onto itself.

answer: 16

step-by-step explanation: first you would add 6+6 which equals 12 then add 2+2 which equals 4. then add 12 + 4 which is 16.

hope this ^_^

,jkulgiurutrjyftkugyi.uykujuyxjdkytuf,yukj

step-by-step explanation: