Question in picture below.

is this correct? if not, could i receive an explanation? : )

How many square feet of out door carpet will we need for this hole? 8ft 3ft 12ft 4ft

What is the measure of ac? 5 units 13 units 26 units 39 units 3x- 2b 6x + 9

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.