Answer:
AC = 30
Step-by-step explanation:
Start with:

Combine like terms.

Subtract
from both sides of the equation.

Subtract
from both sides of the equation.

Then, substitute
for
in 

Multiply.

Finally, add.

Answer:b
Step-by-step explanation:
Answer:
T= (2, 0)
Step-by-step explanation:
(2,0) + (4, 4) = (6, 4)
(6, 4) + (4, 4) = (10, 8)
-5x +2/9 +2x- 2/9 =7/9
collect like terms
-3x+0=7/9
cross-multiply
-27x=7
solve for x
x=-7/27