In the graph, the area below f(x) is shaded and labeled A, the area below g(x) is shaded and labeled B, and the area where f(x) and g(x) have shading in common is labeled AB. The graph represents which system of inequalities?

y ≤ −2x + 3
y ≤ x + 3

y ≥ −2x + 3
y ≥ x + 3

y ≤ −3x + 2
y ≤ −x + 2

y > −2x + 3
y > x + 3

For what values of b will f(x)= logbx be a decreasing function? (16 )

Aperpendicular bisector, cd is drawn through point con ab if the coordinates of point a are (-3, 2) and the coordinates of point b are (7,6), the x-intercept of cd is point lies on cd.

Expresa commuter train leaves downtown sation and travels at a average speed of 55 miles per hour towards the north side sation, which is 50miles away. thirty minutes later, express commuter train #7 leaves north side and travels at a average speed of 35miles per hour towards downtown sation. at the moment the two trains pass each other, how far(in miles) is train #12 from the downtown sation and how long(in minutes) has the #12 train been traveling