Select the expression that cannot be simplified. A 7x − 4 + 8
B 4x2 − 7x + 8
C 8x2 − 7x2 + 8x
D 4x + 8x + 7

The table shows the age and finish time of ten runners in a half marathon. identify the outlier in this data set. drag into the table the ordered pair of the outlier and a reason why that point is an outlier.

Match the following reasons with the statements given to create the proof. 1. do = ob, ao = oc sas 2. doc = aob given 3. triangle cod congruent to triangle aob vertical angles are equal. 4. 1 = 2, ab = dc if two sides = and ||, then a parallelogram. 5. ab||dc if alternate interior angles =, then lines parallel. 6. abcd is a parallelogram cpcte

Find the sum of the given arithmetic series. 24 + 17 + 10 + 3 + + (–39)