Answer:
A. Kaitlyn uses more cups of flour per cookie.
Step-by-step explanation:
Kaitlyn's
[tex]2\frac{1}{2}[/tex] cups of flour---> [tex]3\frac{1}{2}[/tex] cookies
1 cups of flour--> [tex]3\frac{1}{2}[/tex] / [tex]2\frac{1}{2}[/tex] = 1.4 cookies.
Megan's
[tex]1\frac{3}{4}[/tex] cups of flour---> [tex]2\frac{11}{12}[/tex]
1 cups of flour---> [tex]2\frac{11}{12} / 1\frac{3}{4}[/tex] = 1.67 cookies
Therefore, Kaitlyn uses more cups of flour per cookie.
