A jewellery shop sells 240 necklaces in a month.180 of the necklaces were sold via the shops website, the rest were sold in a high street shop. Work out the ratio

I’m stuck on this i don’t understand.

He that is measured at 220° is a reflex angle. the opposite angle is obtuse. find the measure of obtuse .

Tyler enjoys the fish so much that after his birthday his family decides to take him to a famous aquarium a tank at the aquarium is similar to his tank with the scale factor of 8 how many times greater is the volume of the tank at the aquarium than the volume of tyler tank