Answer:
-5.5
Step-by-step explanation:

I think it’s B but I’m not sure
The most precise is 4.00 because that is equal to 10.16 cm and that is the most closes to an exact measurment.
Answer:
x=-7/3 and y=-6
Step-by-step explanation:
6x-3(3x+1)=4
6x-9x-3=4
-3x-3=4
-3x=7
x=-7/3
y=3(-7/3)+1
y=-6
I'm not sure how you obtained -5 as your answer but this is the mathematical explanation. hope this helps!