A rectangular prism with a volumen of 10 cubic units is filled with cubes with side lengths of 1/2 unit

40

I assumed that you wanted to know how much little cubes are in the big cubes...sofirst you need to find out the volume of the small cube : 1/2 x 1/2 = 1/4then divide it with 10, then results with 40! :D

answer: 42

use a calculator to find that 845/73 = 11.575

the whole part of the answer is 11. multiply this by 73 to get 11*73 = 803.

subtract that result from 845 to get 845 - 803 = 42

2(2x + 3) = -4 + 2(2x + 5)

4x + 6 = -4 + 4x + 10

4x + 6 = 4x + 6

4x - 6 + 6 = 4x - 6 + 6

4x = 4x

x = x

unlimited solutions.