The correct option is C 13/18 oz
Given:
Amount of pepper needed
= 0.7¯¯¯2oz = 0.722..
Let x = 0.7222..
10x = 7.222.. - Equation 1
100x = 72.22.. - Equation 2
Subtracting Equation 1 from Equation 2, we have:
100x - 10x = 72.22.. - 7.222...
⟹ 90x = 65
⟹ x = 6590
⟹ x = 1318
Therefore, the amount of pepper needed in rational number form is
1318 oz.