4(x + 7) = 38 solution

65 8 7 4 5 6 8 4 3 2 1 9 5 6 4 2 1 6 5 1 5 1 3 2 3 5 multiply the third number in the first row by the seventh number in the third row. add this result to the fifth number in the second row. add to this total ten times the fourth number in the third row. subtract the eighth number in the first row from the result.

How can you tell when x and y are not directly proportional?

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