The answer should be 14 i did it in my head you should check with a calculator do 8*175 and then divide that by 100

÷

is the equation
When dividing fractions, you "flip-flop" and multiply
So what that means is that you flip the second fraction and multiply
So

is now

Now the equation is

×

which equals

Your answer is
Its option b because you just need to 20,000 into 10 and then subtract 6%.
Hope That Helps ;)
A is the answer of this question