To find out how many cups of milk are needed to make 24 waffles, we first need to determine how much milk is used per waffle.
Mr. Jones' recipe uses ¾ cups of milk for 8 waffles.
First, calculate the amount of milk needed for one waffle:
\[ \text{Milk per waffle} = \frac{3/4 \text{ cups}}{8 \text{ waffles}} = \frac{3}{4} \div 8 = \frac{3}{4} \times \frac{1}{8} = \frac{3}{32} \text{ cups per waffle} \]
Next, calculate the total amount of milk needed for 24 waffles:
\[ \text{Total milk for 24 waffles} = 24 \text{ waffles} \times \frac{3}{32} \text{ cups per waffle} = \frac{72}{32} = \frac{9}{4} = 2 \frac{1}{4} \text{ cups} \]
So, Mr. Jones should use 2 and one-fourth cups of milk to make 24 waffles.
The correct answer is:
B. 2 and one-fourth