You should use this app called photomath!! it will give you the answer to the equation and there is a show work option and if you press it, it will show the work for u :)
Answer:
4^8
Step-by-step explanation:
If you are multiplying two bases that are the same with different exponents, the exponents get added and the base stays the same:

Therefore, 4^3 * 4^5 = 4^8
Answer: 8 pound
Step-by-step explanation: 8 × 1 = 8pound
B is correct since there is one output for every input !!
have a great day :))