x = Nick's age y = Sara's age
Nick is 8 years older than Sara, therefore
y = x - 8
Answer:
± 42.25
Step-by-step explanation:
±6.5^2 = ±42.25
Answer:
Step-by-step explanation:
a³-b³=(a-b)(a²+ab+b²)
6³-1=6³-1³=(6-1)(6²+6*1+1²)=5×43
so 6³-1 is divisible by 5.
