Step 1 :Given: Total reward cards = 900, Probability of receiving a $25 gift card = \(\frac{1}{12}\)
Step 2 :To find the number of customers who receive a $25 gift card, multiply the total number of reward cards by the probability of receiving a $25 gift card: \(900 \times \frac{1}{12} = 75\)
Step 3 :\(\boxed{75}\) customers receive a $25 gift card