Mr. katz's science class is planning a field trip. thirty people are going on the trip. there are 7 drivers and two types of vehicles, vans and cars. each van seats 6 people, including the driver, and each car seats 4 people, including a driver. if there are no extra seats in any of the vehicles, how many vans are taken?

step-by-step explanation:

point a is the center of the circle that passes through points e, f, and g and the center of the circle that passes through points x, y, and z.

the formula of a slope:

from a table we have

substitute:

the slope of f(x) is -1.

the graph of funcfion g(x) is a horizontal line. the slope of a horizontal line is equal 0. therefore the slope of g(x) is 0.

-1 < 0

the answer is two. hope this !