1. y=mx+b.8x=5y+9 Determine whether the equations defines y as a linear function ?
2. In a poll conducted among 180 active investors, it was found that 100 use discount brokers 122 use full- service brokers and 54 use both discount and full time services brokers. How many only use discount?
3. That is the probability o arriving at a traffic light when it is red signal flashing for 30 seconds the yellow signal for 5 sec and green signal for 40 sec?