What is an equation of the line that is perpendicular to y=-3/4x+6 and passes through the point (3,9)

Simplify the expression. -2/5(10+15m-20n)

Girardo is using the model below to solve the equation . girardo uses the following steps: step 1 add 4 negative x-tiles to both sides step 2 add 1 negative unit tile to both sides step 3 the solution is which step could be adjusted so that gerardo's final step results in a positive x-value? in step 1, he should have added 4 positive x-tiles to both sides. in step 1, he should have added 3 negative x-tiles to both sides. in step 2, he should have added 4 negative unit tiles to both sides. in step 2, he should have added 1 positive unit tile to both sides.

Find the area of the region that is inside r=3cos(theta) and outside r=2-cos(theta). sketch the curves.