The answer to your question is 42. The rule is 5 or more go up 1 . If the number is 4 les stay where it is. hope this help.
F(x) = 4.25x + 50
for 6 hrs....x = 6
f(6) = 4.25(6) + 50
f(6) = 25.50 + 50
f(6) = 75.50 <==
Here is the answer of the given question above. According to the puzzle given by Crafty grandma Edith, which was answered by her 6-year-old granddaughter during their thanksgiving gathering, the correct answer of 9183 would be number 3. Hope this is the answer that you are looking for. Thanks for posting!
