Answer: x + 3
Step-by-step explanation: In this question you need to know that a sum is the answer when you add numbers. In this case x = any number. The expression is x + 3
Answer:d
Step-by-step explanation:
4523 + (-4523)
4523 - 4523
0
Cost A = 600+50y
Cost B = 1200+40y
the variables are the years that pass and the cost over time
The answer is B because -5 times -10 makes a positive 50.