Math7 Ep #18-26, Page 149-150

18. 48 notebooks to 14 notebooks(Don't forget to write increase or decrease) -- spelling matters!

19. $240 to $320(Don't forget to write increase or decrease) -- spelling matters!

20. 624 feet to 702 feet(Don't forget to write increase or decrease) -- spelling matters!

21a. Find the percent of change from 2008 to 2012. Round to the nearest tenth of a percent. Is it an increase or decrease?

21b. Find the percent of change from 2006 to 2008. Round to the nearest tenth of a percent. Is it an increase or decrease?

22. Shoe sales for a certain company were $25.9 billion. Sales are expected to increase about 20% in the next year. Find the projected amount of show sales next year.

23. Eva estimates that 475 songs will fit on her MP3 player. The actual amount of songs that it fits is 380. Find the percent error.

24. The table shoes Catalina's babysitting hours. She charges $6.50 per hour. Write a sentence that compares the percent of change in the amount of money from April to May and the percent of change from May to June. Round to the nearest percent if needed.

25 (Part 1). Dario increased his savings from $350 to $413, while Monica increase her savings from $225 to $270. Fill in the statement:_____ had a higher percent of increase in savings. The difference in the percents of increase is _____.