Answer:
i only can explain until number 7
i am sorry
maybe that help you
X=5. y=35.
To solve, substitute the 7x into the equation for y. Solve. You get x=5. Then put that into your first equation. Solve. You get y=35. Hope that helps!!
yes it is .....,...............reflex angle
285*0.078=22.23
22.23+285=307.23
It Costs $307.23