Rewrite the phrase 2 less than a number as a variable expression

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?

Find the zeros of the function. write the smaller solution first, and the larger solution second f(x)= (x+6)^2-49

Find the number of liters in 12.8 gal of gasoline. round to the nearest hundredths