HELP HELP HELP HOEIP

One line passes through (-7,-4) and (5,4) . another line passes through the point (-4,6) and (6,-9)

Find an equation of the line perpendicular to the graph of 28x-7y=9 that passes through the point at (4,1)

Damon makes 20 cups of lemonade by mixing lemon juice and water. the ratio of lemon juice to water is shown in the tape diagram. lemon juice\text{lemon juice} lemon juice water\text{water} water how much lemon juice did damon use in the lemonade? cups