The price of a vase was increased by 4% to £22. What was the price before the increase? Give your answer to the nearest penny

Kayla made observations about the sellin price of a new brand of coffee that sold in the three different sized bags she recorded those observations in the following table 6 is $2.10 8 is $2.80 and 16 is to $5.60 use the relationship to predict the cost of a 20oz bag of coffee.

X-10/4 when x = –18 a 7 b –2 c –7 d 2

What is the maximum of the sinusoidal function