Answer:
123.75 
Step-by-step explanation:
find the volume of the sandbox:
l x w x h = 11 x 7.5 x 1.5 = 123.75 
N = 3. Add 10 to both sides. Add 4n to both sides. Divide 4 from both sides.
Answer:
1.8 miles
Step-by-step explanation:
For this case we can model the problem as a rectangle triangle.
We know:
Length of the sides of the triangle
We want to know:
Length of the hypotenuse
Using the Pythagorean theorem we have:

Then, the distance that he would have saved if he travels directly is:

Answer:
he would have saved:
1.8 miles
2.4 pounds ............................................