How many values of $x$ satisfy both of the following conditions?
(a) $x$ is a multiple of $7,$ not necessarily positive.
(b) $x^2$ is less than $500$.

Jack has a rectangular piece of land, the area of which is represented by a1 = 9.5l. his brother has a different rectangular piece of land, the area of which is represented by a2 = l(14 − l). let a represent the area in square meters and l represent the length in meters of the pieces of land. the two equations plotted on a graph meet at a point as shown in the image