Final answer:
The garden center did not receive 20% of their order, which is 12 shrubs as 20% of 60 shrubs is 12.
Step-by-step explanation:
The student is given that a garden center ordered 60 shrubs, but did not receive 20% of their order. To find out how many shrubs they did not receive, we can calculate 20% of 60. The proportion can be set up by first converting the percentage into a decimal, which in this case is 0.20. Then, multiply this decimal by the total number of shrubs:
20% of 60 is 0.20 x 60 = 12 shrubs.
Therefore, the garden center did not receive 12 shrubs.