What is another name for < 2

Which is the equation of a line perpendicular to the line with the equation 3x+4y=8

What is the axis of symmetry of the function f(x)=-(x+ 9)(x-21)

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.