PLEASE HELP!! use the model to predict when tobacco production could fall below 50,000,000 pounds

Give the equations of two different lines that are perpendicular to the line 3x + 4y = 7.

Mr. brettler is hanging up a 5-foot tall rectangular welcome sign in the gym. he has drawn a sketch on a coordinate grid. he has the lower vertices of the sign at (9, –3) and (–6, –3). where would the upper vertices be on the grid?

When x = 3 and y = 5, by how much does the value of 3x2 – 2y exceed the value of 2x2 – 3y ?