Answer:
64 degrees
Step-by-step explanation
multiply 4 by 16 because for every hour it was cooled another 4 degrees so 4 times 16 equals 64
3,6,9,12
Step-by-step explanation:
Add 3 to every number after 3.
step 1: 100
step 2: is 100
Step 3: 5,600
B. 3 + 5i
-2i + (9 - 3i) - (6 - 10i) =
= - 2i + 9 - 3i - 6 + 10i
= 5i + 3
= 3 + 5i