(a) 1 serving of biscuits mix = 1/4 cup
1 box of biscuits mix = 72 servings
therefore the number of cups of biscuits mix in a box
![\begin{gathered} (1)/(4)*\text{ 72 = 18} \\ \text{The total number of cups of biscuits mix in a box = 18} \end{gathered}](https://img.qammunity.org/2023/formulas/mathematics/college/dds37rf9952hcg8c4sqhsfipmqd6sy6td8.png)
(b) The total number of biscuits that can be made using a cup of biscuits mix
= 18
According to the above table, the ratio of the number of biscuits to mix cup is 3
Therefore 18 x 3 = 54 biscuits
(c) The cost in dollars/cents per biscuits is
![\begin{gathered} 54biscuits\text{ }\equiv\text{ \$6.48} \\ 1\text{ biscuit }\equiv\text{ }(6.48)/(54)\text{ (conversion of dollar to cent multiply \$1 by 100)} \\ =\text{ \$}(648)/(54) \\ =\text{ 12 cents} \end{gathered}](https://img.qammunity.org/2023/formulas/mathematics/college/4fmve8e9m38pse410c7im1pb6pxsse5mo0.png)