One rule of thumb for estimating crowds is that each person occupies 2.5 square feet. Use this rule to estimate the size of the crowd watching a concert in an area that is 150 feet long
and 240 feet wide

The number of people that will occupy 36000 square feet= 14400 people

Step-by-step explanation:

each person occupies 2.5 square feet.

Area of concert in an area that is 150 feet long and 240 feet wide

Area=150*240

Area=36000 square feet

If one person occupies 2.5 square feet

The number of people that will occupy 36000 square feet

= 36000/2.5

= 14400 people

The number of people that will occupy 36000 square feet= 14400 people

1. perpendicular

2. parallel

3. perpendicular

region b will make the inequalities y < 2x + 1 and y > -x - 2 true ⇒ answer a

step-by-step explanation:

* lets study the graph and the inequality to solve the question

- the inequality y > -x - 2

∵ the form of the inequality is y > mx + c , m is the slope of the line

  and c is the y-intercept (the line intersect y-axis at point (0 , c)

∴ c = -2 that means the line intersect the y-axis at point (0 , -2)

∵ the sign of the inequality is >

∴ we shad the part over the line

  region a and b

- the inequality y < 2x + 1

∵ the form of the inequality is y > mx + c , m is the slope of the line

  and c is the y-intercept (the line intersect y-axis at point (0 , c)

∴ c = 1 that means the line intersect the y-axis at point (0 , 1)

∵ the sign of the inequality is <

∴ we shad the part under the line

  region b and c

∵ the common region between the two lines is region b

∴ region b will make the inequalities y < 2x + 1 and y > -x - 2 true