1. solve -2n + 5 > 7.
2. kia experimental probability of striking out at baseball is 13%. out of 30 times at bat about how many times will she strike out?

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The fence around a quadrilateral-shaped pasture is 3a^2+15a+9 long. three sides of the fence have the following lengths: 5a, 10a-2, a^2-7. what is the length of the fourth side of the fence?

The triangles in the diagram are congruent. if mzf = 40°, mza = 80°, and mzg = 60°, what is mzb?