Plz help me get the right answer

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.

If there are 3.281 feet in 1 meter, how many inches are in one centimeter

The candy store is having a 30% off sale. emma is going to buy $7.50 worth of candy.how much will she pay after the discount