You use
8
cups of flour to make
24
muffins. at that rate, how much flour will it take to make
30 muffins?

10 cups of flour.

Step one: find the unit rate: 8/24 = 1/3
Step two: multiply the unit rate 1/3 * x/30

Hope this helps!

If 8 cups of flour are needed to make 24 muffins, then 1 you need 1 cup to make 3. Basically making the equation for flour to muffins F/3=M, F being flour and M for muffins. to find the amount of flour you need, plug in 30 for muffins.