B), A),D), and I dontknow how to answer the last one
There are 3 ways of solving a simultaneous problem, substitution method, elimination method and Gauss-Jordan method. I'm gonna use the substitution method since it's easier and i think it would suit your level more.
First let's try solving for y since it's easier to start with.
Firstly we have to find an equation for x:

Great, now we can use the substitution method to find the value of y using the first equation:

Now we know that y=1 we can solve the first equation we made:

And the answer is 
Double check:

And that's our final answer! (4,1)
Answer: 161 rupees.
Step-by-step explanation:
Use a percentage Calculator on the internet to find the solution.
1100 + 50
1150
(put into calculator)
Without reliable transportation, you could be late a lot, and get fired. That shows up when you apply for a new job, even if you get better transportation. If you don't want to get fired, you may not want to take the job.
Answer: the answer is 546
Step-by-step explanation: because 646 goes into 565 so 546 is the answer