To find points, we use the graphing technique or analytic algebra.
Step-by-step explanation:

Answer:
8.8 Kilograms
Step-by-step explanation:
Answer: 6.25 is her profit
Step-by-step explanation: cost-price= protect
2.25 - 8.50=6.25
So there is a rule
(+)(+)=+
(-)(+)= -
(+)(-)= -
So now if you subtract 6 with 7 you will end up having -1 as you’re answer. Hope this helps