35.36 of the carbon-14 will still remain. Hope this helps!:)
In 4 hours, Naoya must have read

There were 350 pages remaining at the time, so the total number of pages is

.
For each hour of reading, Naoya reads 55 pages, so the number of pages he's finished reading by the

'th hour is

. So the number of pages left to read is given by
Answer:
-45
Step-by-step explanation:
-34+15=-19
-29-(-3)= -29+3= -26
-19 + -26 = -45