Malcolm drew a circle with a diameter of d units, a radius of r units, a circumference of C units, and an area of A units. Which of the following could Malcolm use with his circle to define pi?

The evening newspaper is delivered at a random time between 5: 30 and 6: 30 pm. dinner is at a random time between 6: 00 and 7: 00 pm. each spinner is spun 30 times and the newspaper arrived 19 times before dinner. determine the experimental probability of the newspaper arriving before dinner.