If you double the number of sides of a regular polygon, what happens to the measure of each exterior angle? Give evidence for your conclusion. Please help
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Ngrid mixes 3.6 pounds of almonds with some raisins to make a trail mix. she divides the trail mix into 12 equal portions. each portion weighs 0.7 pound. how many pounds of raisins did she use to make the trail mix? express the answer to the nearest tenth.

Find the sum of 4x^{2} -4+6 and -7^{2} +3x+1

The ratio of rock songs to dance songs on jonathan’s mp3 player is 5: 6. the total number of rock and dance songs jonathan has is between 101 120. how many rock songs does he have?