Please hurry At a concert, there were 200 people in the crowd when the band
vent on, 400 people after the first hour and 800 when the band
inished after 2 hours.
Which of the following represents the growth of the crowd during the
show?

Answer is y =400(2x)

Step-by-step explanation:

y = 400(2ˣ)

Step-by-step explanation:

it is that answer because 800-400=400 so that would rule out every answer but this one.

6mm^3 or .6cm^3

      216

      /   \

  36     6

  /   \     /

6     6   6

factor trees are nice.

step-by-step explanation:

the ratio of red paint to blue paint is always 9/7. that means that, whatever x's value, (4x+12)/(4x-4) has that same ratio. so, set up an equation and cross-multiply to solve for x:

9/7 = (4x+12)/(4x-4)

9(4x-4) = 7(4x+12)

36x - 36 = 28x + 84

8x - 36 = 84

8x = 120

x = 15