Consider this quadratic equation. x2 + 2x + 7 = 21

The number of positive solutions to this equation is
.

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

Acommunity group is building a garden on a rectangular lot of land. the lot measures 5x by 10x and the garden will be circular with a radius of 3x. how much of the land will be left over after the garden is built? a. 41 pi x^2 b. x^2 (50 - 9 pi) c. x^2 (50 - 3 pi) d. 41x^2