Answer:
Hisaki can make 4 2/3 batches of cookies with 3 1/2 cups of sugar.
Step-by-step explanation:
Let x be number of batches with 3.5 cups. (I've converted the fractions to decimals to simply calculation. Let me know if you want an explanation where I retain the fractions as-is.)
1 batch = 0.75 cup
x batches = 3.5 cups
-using unitary method-
( 3.5 * 1 ) / 0.75 = x
4.66667 = x
Therefore, number of batches = x = 4 2/3 batches.