The temperature on a winter night was -23 . the temperature rose by 5 when the same came up. when the sun set again, the temperature dropped by 7. write and evaluate an expression to find the temperature after the sun set.

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.