To round to the hundreth's place (.0<u>1</u><u />), you need to take the number in the thousand's place (.00<u>1</u>), and determine if the number needs to go up or down.
If the number in the thousand's place is <u>greater</u> than 4, then the number goes up.
360.72<u>7</u> --> This means that the hundreth's number goes up to 3.
If the number in the thousand's place is <u>lesser</u> than 5, then that number stays the same.
89.85<u>2</u> --> This means that the hundreth's number stays the same.
so if you offer 20% off of 1,049 you get 209.8. If the tax is 4.25% then do the math -._-. (thinking)... 200.8835 and just do the lil bit of math to find your answer.
B.) Marua will spend 2 hours to read 100 pages of sociology which means she can only read 60 pages of economics. Therefore, the opportunity cost of reading 100 pages of sociology is forfeiting 40 pages (2 hours) of economics.