Esther purchased two rock tumblers and one spy pen for $74. eli purchased two puzzles and a spy pen for $50. sabine purchased a rock tumbler and two puzzles for $57. based on this, how much does one puzzle cost?

Find the missing variable for a parallelogram: a = latex: 32in^2 32 i n 2 h = b = 6.3 in (1in=2.54cm)

Use the spider tool located on page 1 of this activity to draw a 12-pointed star for the new logo. (hint: if the spider rotates 360 degrees -- or 720 degrees or 1080 degrees -- she will be facing in the same direction in which she started. when the spider is done drawing, you want her to be facing in the same direction in which she started. she'll be making 12 rotations, all the same size, so each rotation must be some multiple of 360/12 = 30 degrees.) urgently. been stuck on this problem for around 45 minutes now.! it should be easy if you're smart enough

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