What is the psat selection index score used to determine?

The answer to your question is eligibility for the national merit scholarship program

Amortgage paymenthomeowners insuranceproperty taxesa down paymentutility payments

Which of the following is an example of an opposing signal? no examplthates given.   i would say, that traffic lights in a city at major intersections direct the flow of traffic in opposite directions so would be an example.also, stop signs on either side of the same street would be an example. at a train crossing, the light for allowing car traffic in opposite directions or not would be another example.