0.875 is because the first digit that is different is in the tenths place and the 8 in 0.875 is larger in value than the 7 in 0.78
Hope this helps :)
3x - 4y = -10....multiply by 2
5x + 8y = -2
---------------
6x - 8y = -20 (result of multiplying by 2)
5x + 8y = -2
---------------add
11x = -22
x = -22/11
x = -2
3x - 4y = -10
3(-2) - 4y = -10
-6 - 4y = -10
-4y = -10 + 6
-4y = -4
y = -4/-4
y = 1
solution is : (-2,1)
3, because one cube means like from a certain view the 2-d model IS one block high so 1x16, 2x8, and 4x4.
Slope= 3/2
CORRECT IF WRONG!!