84÷2.8 =3.0 that's what I did when I learned it
28. 142... a repeating decimal <span />
x = -1
y = 1
To find this, input the equation into a graphing calculator, whether online or an actual one, and you have two options:
1 - Search for the points in which the line crosses the x and or y axis.
2 - Hit 2nd Graph to access the table and find when x and y equal zero.
Hope this helps!
12 I think because its half 24 and 3 x4 =12