ANSWER ASAP Which of the following situations could be described by the equation y = 120 – 25x?

A) There are 120 people in the football stadium, and 25 more are entering each hour.
B) A plumber charges $25 for a house call and $120 per hour.
C) A teacher has 120 students. Her third period has 25 students.
D) There are 120 gallons of water in a tank. It releases water at a rate of 25 gallons per minute.

For the following sequence determine the common difference (if it is an arithmetic sequence) or the common ratio (if it is a geometric sequence).

Consider the following function. which of the following graphs corresponds to the given function? w. x. y. z. a. z b. y c. x d.

For every corresponding pair of cross sections, the area of the cross section of a sphere with radius r is equal to the area of the cross section of a cylinder with radius and height 2r minus the volume of two cones, each with a radius and height of r. a cross section of the sphere is and a cross section of the cylinder minus the cones, taken parallel to the base of cylinder, is the volume of the cylinder with radius r and height 2r is and the volume of each cone with radius r and height r is 1/3 pie r^3. so the volume of the cylinder minus the two cones is therefore, the volume of the cylinder is 4/3pie r^3 by cavalieri's principle. (fill in options are: r/2- r- 2r- an annulus- a circle -1/3pier^3- 2/3pier^3- 4/3pier^3- 5/3pier^3- 2pier^3- 4pier^3)