Andy and sylvie each incorrectly simplified the expression -3 - 4(2x - 3). andy wrote -14x + 21 and sylvie wrote -8 - 6. explain their errors and give the correct answer.

If the table of the function contains exactly two potential turning points, one with an input value of –1, which statement best describes all possible values of m? m ≥ –12 –12 < m < 4 m ≤ 4 m ≥ 4 or m ≤ –12

Acircle has a circumference of 7.850 units. what is its radius?

An airplane travels at an unknown elevation before it descends 3 miles to an elevation of 15 miles. find the elevation of the plane before its descen.