The answer is K= 7 because
-5-7=-12
I believe the answer is 4k + 11
To determine the number of cubes he needs to fill the box (this is assuming the cubes are 1 in cubes, he would need to calculate the volume of the box. To find the volume he would multiply the length by the width by the height. This would be 5 in x 6 in x 7 in. The volume is 210 cubic inches, so he could fill it with 210 one inch cubes.
Answer:
Two systems of equations are equivalent if they have the same solution(s).
