Answer:
1.68 as a percent is 168%.
Step-by-step explanation:
To convert 1.68 to a percentage, multiply the number 1.68 by 100.
3/4 I believe since 6 1/4- 51/2 is 3/4
3 / 15 = 1 / 5
5 / 20 = 1 / 4
so no, they are not. we know this because when you turn them into proportions and simplify them, the two rates are not equal
d1 = ax + by + c = 0 and d2= mx + ky + f = 0
if they are parallel :

8x + 2y = 7
8x + 2y - 7 = 0
- 8x + 2y -9 = 0
- 4x + y -6 = 0
- 16x + 4y - 19 = 0
you can create more whatever you want =)
Hope this helps ^-^
In the table states the frequency of the marbles. It says in the 40 tries she had a frequency of 24 marbles that are yellow and for green it states the frequency is 16 marbles for green.