If the price of a yo-yo in a shop increased by 20% and is now $18.00, what was the original price?

So $18 would be 120%. This is because the yoyo is 100% and you increased by 20%. If this was a calculator question, you would do 18 / 120 than times by 100 to get 100%. Naturally it would just be 18/12 x 10 = 15. so $15 is 100% or the originally price.

Hope it helped :)

answer: (1,3) and (-2,0) i think.