1) The length of steel beam is linear function of temperature when temperature is 40F a certain steel beam is 50 feet long and at 95 F same beam is 50.12 feet long. What is the length of beam at 70F? At what temperature is beam 49.9 feet long?
2) There are 2 elementary schools in town where your sister lives, with students arbitrarily chosen to attend. One school is much larger than other; so many more students attend School A than students attend School B. Probability that child will attend School A.