It’s 4.2 because it’s and given and you add then yeah you get the point
Answer:
im not able to do that question it is confusing
Step-by-step explanation:
Answer:
Therefore the friends will have to buy 511 feet of fence (rounding up) or 510 feet of fence ( to the nearest foot).
Step-by-step explanation:
i) perimeter of rectangular yard = 319 feet
ii) perimeter of yard of friends 
iii) Therefore the friends will have to buy 511 feet of fence or 510 feet of fence ( to the nearest foot).
1 = x(2) - 2x - 3
1 = 2x + -2x + - 3
1 = (2x + -2x) + (-3)
1 = -3
1 - 1 = -3 -1
0 = -4
No solutions
Put -4 in place of x
-4 to the second power is 16 so it would be 16-(-12)= 28