Sinead spends £530 on a plane ticket and €120 on airport tax. Using £1 = €1.15, what percentage of the total cost does Sinead spend on airport tax?
Give your answer rounded to 1 dp.​

In triangle abc segment de is parallel to the side ac . (the endpoints of segment de lie on the sides ab and bc respectively). find de, if ac=20cm, ab=17cm, and bd=11.9cm;

Taber invested money in an account where interest is compounded every year.he made no withdrawals or deposits. the function a(t)=525(1+0.05)^t represent the amount of money in the account after t years. how much money did taber origanally invested?

What is the benefit of converting measures in a ratio to the same unit