If possible, use the Law of Syllogism to make a conclusion. If it is not possible to make a conclusion, tell why. 7. To take Calculus, you must first take Algebra 2.
To take Algebra 2, you must first take Algebra 1.
8. If a tree has ragged bark, then the tree is unhealthy.
If a tree has ragged bark, then the tree might be a birch tree.
9. A quadrilateral has four congruent sides if and only if it is a rhombus. A square is a rhombus.