Answer:
5/8
Step-by-step explanation:
You need to convert to a simplified fraction by placing the numbers to the right of the decimal over 1000. Then reduce the fraction.
(4,-1) turns into (1,4) because the equation for that is (x,y)->(y•-1,x)
Answer:
7
Step-by-step explanation:

I hope it helped you
It will take one hour and thirty minutes.