Final answer:
Patrick mowed the entire lawn before and after lunch, , which is represented by option (C) 3/4.
Step-by-step explanation:
To find the fraction of the lawn that was mowed before and after lunch, we can add the fractions together.
Patrick mowed 1/2 of the lawn before lunch and 1/2 of the lawn after lunch.
To find the total fraction of the lawn mowed, you add these two fractions:
1/2 + 1/2 = 2/2= 1
Since 2/2 is equal to 1 whole, it means Patrick mowed the entire lawn, which is represented by option (C) 3/4.