Transforming linear functions b = −4 and b* = −6

Anyone know? will mark brainliest if you're correct!

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

What is the equation of the line that is parallel to the line with the equation y= -3/4x +1 and passes through the point (12,-12)