The answer should be £6.70
Answer:
Step-by-step explanation:
I think option 4 is the correct answer
Use PEMDAS. 20/(4*5)=1
Multiplication before dividion
So firstly, we have to find the LCD, or lowest common denominator, of 9 and 7. To do this, list the multiples of 9 and 7 and the lowest multiple they share is going to be your LCD. In this case, the LCD of 9 and 7 is 63. Multiply x^2/9 by 7/7 and 2y/7 by 9/9:

Next, add the numerators together, and your answer will be: 
Hello!
Answer:⇒15√6 i
Step-by-step explanation:
√-54=3√6 i
5*3√6 i
Multiply the numbers.
5*3=15
=15√6 i
Hope this helps!
Thank you for posting your question at here on brainly.
-Charlie