Write the equation of the graphed line

Which equation expression the relationship between the number of boxes b and the number of cans c and the proportion is 48

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.

What multiplys to be 1 but adds up to be 4