How do i study for a big math test? any tips on how to study i'm a visual learner.

How many grams the dog will eat in 3 days?

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.

With alll of except for the 2 that i did already