Abulb can either be on or off. a board contains 20 bulbs connected to a randomization circuit that lights up a random sequence every time it is turned on. what is the probability that all the lights will be switched on?

You are at a restaurant and owe $38 for your meal. you want to leave a 20% tip. how much will your tip be?

Acar started driving from city a to city b, distance between which is 620 miles, at a rate of 60 mph. two hours later a truck left city b and started moving towards city a at a rate of 40 mph. how many hours after the truck's departure will the two meet?

Do,h = (7, 9) (14, 18) the scale factor is