Use the fomula a_(n)= a_(1)+ d(n-1)
Isolate the variable by dividing each side by factors that don't contain the variable.
Inequality Form:
b
<
4.541
¯
6
b
<
Interval Notation:
(
−
∞
,
4.541
¯
6
)
It does not look like Suro even made an error. She took the square root of both sides to get x = 7, I don't see any problem here.
