Find the difference -)=

a. 30
b. -30
c. 2
d. -2

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?

What is a rational number between 9.5 and 9.7

How do businesses a country's economy? a. by investing in goods and services b. by increasing the unemployment rate c. by making profits