Answer:
Fern will knit 32 scarves in 8 nights.
Step-by-step explanation:
Number of scarves knitted by Fern in 5 night = 20
Relation between number of scarves knitted and number of nights is proportional,
Therefore, Number of scarves knitted (s) ∝ Number of nights spent to knit the scarves (n)
s ∝ n
s = kn
k = 
Here, k = proportionality constant
For s = 20 and n = 5,
k = 
k = 4 scarves per night
For 8 nights, by using the same proportionality rule,
k = 
4 = 
s = 32 scarves
Therefore, Fern will knit 32 scarves in 8 nights.
Hi Brainiac
7/8 =?/48
Let's replace the unknown place by x
7/8 = x/48
Cross multiply
(7)(48)= (X)(8)
336 = 8x
Flip it
8x = 336
Divide both sides by 8
8x/8 = 336/8
x= 42
The answer is C
Now if you wanna see if the answer is good just replace 42 in blank space
7/8 = 42/48
Now didivde 7 by 8 and divide 42 by 48
7/8= 0.875
42/48= 0.875
The answer C is correct
I hope that's help:)
If you have questions please let me know :)