The number of days a group of 250 homes is on the market is normally distributed with a mean 50 and a standard deviation of 31 what percent of the homes are on the market between 11 and 89 days

Np4=12np2 with clear explanation.

Josephine has a great garden with and area of 2x2 + x - 6 square feet

Which of the following equations is of the parabola whose vertex is at (2, 3), axis of symmetry parallel to the y-axis and p = 4? a.)y-3 = 1/16 (x-2)^2 b.)y+3 = -1/16 (x+2)^2 c.)x-2 = 1/16 (y-3)^2