Answer:
It's the fourth answer, D.
Answer:
n = -7,6
Step-by-step explanation:
n(n+1)+3=45
distributive property: a(b+c) = ab+ac
n²+n+3 = 45
n²+n -42 = 0
factor now
(n+7)(n-6) = 0
n = -7,6
Answer:
10 / 12
simplified:
5/6
since 5 is a prime number, we can't simplify this ratio any further
