In an arithmetic sequence, the difference between consecutive terms is always the same. For example, the sequence 3, 5, 7, 9 ... is arithmetic because the difference between consecutive terms is always two.
Answer:
16
Step-by-step explanation:
20-4=16
P≥300
300≤P
P=2(L+W)
300≤2(L+W)
L=3
W=x+5
300≤2(3+x+5)
300≤2(8+x)
divide both sides by 2
150≤8+x
minus 8 both sides
142≤x
x is at least 142
width is at least 147
