Answer:
Answer is 8.
Step-by-step explanation: 12-4=8 so 4+8=12
hoped this helped you
Answer:

Step-by-step explanation:

Answer:
135
Step-by-step explanation:
My method 45 hours - 1 so i could divide by 2 because its 2 hours every 6 problems and 1 hour would be 3 math problems we can add that to the total
44 / 2 = 22, 22 * 6 = 132, 132 + 3 = 135
Alternate method
45 * 3 = 135