Answer:
$17.50
Step-by-step explanation:
first you multiply the price of the books by three to get the total price of 22.50. since she already has 5.00 you can subtract that from the total to get 17.50. 17.50 is the amount she needs to make the purchase.
Hope this helps.
1) What you see as 3

can be also changed to only a fraction, by changing

to

, but since the question wants 2 as a whole number, we must take out

and then add the 8 eights to the other 3, to get <span>
</span>for # 10- 13, you need to have the same number on the bottom of all the numbers being subtracted, that means turning the number that aren't fractions (like 4) into fraction, and then into fractions with the same denominators.
10)

changes to

to get

or

11)

changes to

, and

to

to get

or <span>

</span>
This equals 10C3 * 5C2
----------------
15C5
= 120 * 10
---------- = 1200/3003 = 400/1001
3003
Answer:
112.98
Step-by-step explanation:
37.68/2π = 5.9969
5.9969²π = 112.98
There are 8 people who do not like reading, and 2 people who do not enjoy playing video games. There is one person who does not like reading or playing video games.
This makes 9 non readers and 3 non gamers.
Ratio is 9:3 which simplifies to 3:1