I need help
4(x-7)+12 = 16

If you have 12 feet of string and you cut it into equal length of 5 inches each how much string will be left

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.

Prove that 16^4-2^13-4^5 is divisible by 11.