Answer:
6
Step-by-step explanation:

The 1st option is your answer,
because to solve c, the -11 and 11 = 0, so your left with adding 23 and 11, then you divide -4 on both sides to get the variable (x) by itself
And for f, you only need to divide -4 on both sides to get x by itself.
Answer:
4,left,4,down
Step-by-step explanation:
Answer: i took the test and got it right
D (0.55,0.75)
Step-by-step explanation:
Simple...
you have:
1.) x-3y when x=-4 and y=9
-->>> (plug it in)
-4-3(9)
-4-27
-31
2.) a-|b| when a=-7.6 and b=-8.9
-->>>(plug it in)
-7.6-|-8.9|
-16.5
3.) 3(8x-y) when x=-4 and y=9
-->>(plug it in)
3(8(-4)-9)
3(-32-9)
3(-41)
-123
4.)

when c=2 and d=



54
Thus, your answer.