Answer:
The line the foci will be graphed is?
y=0
The foci are located at about ?
(4.58, 0) and (-4.58, 0)
What type of lines will the directrices be?
Both vertical
The directrices are located at about?
x= 5.46 and x= -5.46
Step-by-step explanation:
Assuming that the mix disolves into the 20 gallons and doesn't take up space
1:2
x:20
1/2=x/20
multiply btoh sides by 20
10=x
answer is 10 cups of mixture

therefore ur answer is OPTION A 8.889 x 10-6 cm/s