You can fir 8x8x8 cubes in the carton, that means you can fit 512 cubes in the carton.
the total cost would be, 0.25 x 512 = $128
5x-10+6 (then you sum the like terms)
5x-4
the answer is B 5x-4
13 units.
Since both are negative, and they’re just asking for distance between, you can just subtract 12 from 25 to get 13.
12x - 4y = -8
y = 3x + 2
Rewrite the first equation
12x + 8 = 4y
3x + 2 = y
As you see, the first and second equation are actually the same, meaning there's an infinite number of solutions.
No solution exists for -3x+y=-18 and -3x+y=-6