Can somebody help me please

Which number completes the inequality? 2/3 < _ < 7/9

Which value of m will create a system of parallel lines with no solution? y = mx - 6 8x - 4y = 12

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.