Answer: 8 of the sodas were regular. (24 were diet)
Step-by-step explanation: If 32 sodas were served and 25% were regular, we just need to multiply the 25% by the 32 sodas.
0.25 x 32 = 8
We can check this by saying that 25% is a fourth, and if we got 8, then 8 times 4 should equal 32.
8 x 4 = 32.