Please help me solve this question

Iam a rectangle. my perimeter is 60 feet. how much are do i cover?

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.

Which number line correctly shows 0.8 + 0.3?