Sewanhaka High School Mrs. Lidowsky, Principal Math 8 Mr. Long, Teacher Period:______________ Date:________________________ Name:___________________________________ (Use the back as more room to show your work.) H.W. #31: Function Notation 5) Express 1.19 x 10-5 in standard form. 6) Express 2,085,000,000 in scientific notation. 7) In 1981, there were 25 endangered and threatened species of reptiles in the U.S. In 2001, there were 36 species. By what percent did the number of these reptile species from 1981 to 2001?