1. For 4ft by 4ft, 1000 earthworms can fit, so for a square has a side length 7 times longer, the answer is 49,000 feet, or (a).
2. This shape is an 8-sided figure or an octagon. This is the longest diagonal, so the answer is 483.2 inches, rounded to the nearest tenth: 483.2 inches, or (A).
5(last one): Plotting, we have: https://www.desmos.com/calculator/bm72xzzt3z, we can split this figure into a rectangle and a triangle: 3*4=12-rectangle, and 1/2*4*4=8, so 12+8=20 units.
