Part a: subtract 48-30=18
Part b: i found it by subtracting 48 -30 because it says left over
Answer:
The answer is (3x^2-2x+5)
If it is a square all sides are equal, so the perimeter is equal to 4 times the length of one side...
4s=32
s=8in
Where's your numbers?
Can't help because I have no information, sorry