Consider this quadratic equation.

x² + 2x + 7 = 21

The number of positive solutions to this equation is

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The approximate value of the greatest solution to the equation, rounded to the nearest hundredth, is

Which expression converts 45 degree to radians

Combine like terms to make a simpler expression 3z+z

Answer 20 points and brainiest ! on the board, your teacher writes an example of how to find the median. one of the numbers is erased, leaving what is shown, 18, 30, 26,12 22. what is the median? a. 10 b. 20 c. 24 d. 28