Sarah thinks of a number. She squares it, adds the square root of 64, divides it all by the cube root of 512, and then finally she adds 8 quarters. Her answer is 4. What number did she start with?

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.