Answer:
-16
Step-by-step explanation:
-16... using d = b²-4ac
Answer: 21.5cm³
Step-by-step explanation: This is your answer there is no way it is incorrect
N(2n+6)-(n²-1)= 2n²+6n-n²+1=n²+6n+1
Multipy $275 by the 4.5%
4.5%=.045 (just move the decimal 2 places left)
275*.045= 12.375 Susan gets $12.375 a year (don't round yet)
Multiply $12.375 by 5years 12.375*5= 61.875 (now round)
$61.90=B
I hope this helps! :)