Find the dy/dx and the slopes of the tangent lines shown on the graph of the polar equation r=(1-sin(theta)

What is the area of triangle abc if a = 8, b = 11, and c = 15?

Its worth 10000000 points need asap if you answer correctly ill mark brainliest

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