If (s-3)^2=0, what is the value of (s+3) (s+5)?

Here,

(s-3)²=0

→s-3=0

→s=3

Substituting s=3 in,

(s+3)(s+5)

=(3+3)(3+5)

=(6)(8)

=48

The correct option is Ralph’s monthly insurance payment will increase by $8.78

Step-by-step explanation:

We have given that Ralph’s insurance company has increased his annual premium by $105.38.

Ralph's annual premium increased by $105.38. Annual premium means yearly and since there are 12 months in a year. To find out his future monthly change we just divide the increased annual premium by 12. By doing so we get,

105.38/12 = 8.7816666666667

By rounding off upto 2 decimal places we get  $8.78

Thus the correct option is Ralph’s monthly insurance payment will increase by $8.78