Six significant figures are
3.141592
Answer: 71.43%
Step-by-step explanation:
$77___100%
$55___x=71.43%
$55*100/$77 = 71.43
It's a quadratic equation. Solve it through factorisation.
5s^2 - 14s - 3 = 0
(5s + 1)(s - 3) = 0
5s + 1 = 0
or
s - 3 = 0
Therefore
s = -1/5
or
s = 3
