Answer:
8 picture frames would be built.
Step-by-step explanation:
David started with 12 feet's of wood
And has 6feets if wood remaining
Feets of wood used = 12 - 6 = 6feets
Each frame = 3/4 feets
1 picture frame = 3/4 feets
Number of pictures frames has he built =
X picture frame = 6 / (3/4)
X picture frames = 6 x 4/3
= 24/3 = 8
8 picture frames would be built.