A drawing of Casey's bedroom is shown using shaded squares. What is the area of Casey's bedroom?

To find the area of Casey's bedroom, we need to count the number of shaded squares and add them up.

2 rows of 3 squares each is 2 x 3 = 6 squares
1 row of 8 squares is simply 8 squares
5 rows of 10 squares each is 5 x 10 = 50 squares

Adding them together, we get:

6 + 8 + 50 = 64

Therefore, the area of Casey's bedroom is 64 square units. The correct answer is (C) 64.