A) 2 / 7 + 3 / 7 = ? b) 5 / 8 + 7 / 8 = ? c) 2 / 3 - 1 / 2 = ?
d) 4 / 5 - 1 / 5 = ? e) 9 / 11 + 5 / 11 = ? g) 2 / 7 + 3 / 7 = ?
h) 5 / 8 + 7 / 8 = ? i) 2 / 3 - 1 / 2 = ? j) 4 / 5 - 1 / 5 = ?
k) 9 / 11 + 5 / 11 = ? l) 3 / 4 + 1 / 8 = ?

Please help me for 23 point

1- identificar select the category that corresponds to each term. january 23 11: 59 pm unlimited attempts remaining grade settings 276-279 vocabulary list modelo fiesta quinceañera casada adolescencia viudo juventud navidad niñez vejez aniversario de bodas divorciado madurez cumpleaños soltera

Find the slope of the line that contains the following points. r(-2, 4), s(6, -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?