Answer:
The answer is -1
Step-by-step explanation:
hope it helps
Do you mean an extraneous solution? I will tell you what I think. To tell if a solution is extraneous you need to go back to the original problem and check if there actually is a solution or if the solution is actually right. If not then it is extraneous.
Step-by-step explanation:
this is your answer..........
Answer:
£15120
Step-by-step explanation:
60-18= 42 years
42×12= 504 months
504×30=£15120