B/4 + 2 = -1
Please help, I’ll give brainliest to whoever answers correct first.
2 answers:
Answer:
B= -12
Step-by-step explanation:
-12/4 + 2= -1
Answer:

Subtract 2 from both sides:


Multiply 4 to both sides:


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Answer:3/4
Step-by-step explanation:
Answer: -127.5
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Answer:
9 weeks
Step-by-step explanation:
Step-by-step explanation:
First term(a) = 1
Common difference(d)=2-1=1
No.of term(n)=50
Sn=n÷2(n+1)=50÷2(50+1)=1275
x2=400
x=√400
=20
20^2=400