Of the five quadratics listed below, four of them have two distinct roots. The fifth quadratic has a repeated root. Find the value of the repeated root.

-x^2 + 18x + 81

3x^2 - 3x - 168

x^2 - 4x - 4

25x^2 - 30x + 9

x^2 - 14x + 24

Maria lives 56 mile from the mall. On Saturday, she walked from her house to the mall and then back again. At the mall, she walked 14 mile while shopping. Maria thinks she walked more than 2 miles on Saturday. Prove or disprove Maria's conjecture.

If a property sold for $350,000, what total commission would the seller pay at 6%?

78 is what percent of 450

A coin is tersed twice, what as the probability of getting exactly on head?

A recipe calls for apple juice and cranberry juice. The ratio of apple juice to cranberry juice is 3:2. Tyrone wants to make at least 20 cups of punch, but no more than 30 cups of punch.

What is the reference angle of - 3 radians? Explain.

What is the volume of a square based pyramid with a side 11 cm and a perpendicular height of 20 cm

Gwen had 7 1/7 cups of flour. If she used 3 5/7 cups baking, how much flour did she have left

Which expressions are equivalent to 10 a - 25 + 5 b

The high school, middle school, and elementary school are all on the same road. The distance from the high school to the middle school can be represented by the expression 8.7x2+11.9x+3.5.