The sum of 35 and one-fifth part of itself is added to the sum of one seventh part of itself and 3.

Rachel reads 1/5 of the pages of a book plus 12 pages on the first day. on the second day, she reads 1/4 of the remaining pages plus 15 pages. on the third day, she reads 1/3 of the remaining pages plus 18 pages. on the fourth day, she reads the remaining 70 pages. how many total pages are in the book?

Give the equations of two different lines that are perpendicular to the line 3x + 4y = 7.

Identify the number 127 as a rational or irrational. explain