2. Mood. A January 2007 Gallup Poll question asked, “In general, do you think things have gotten better or
gotten worse in this country in the last five years?"
Possible answers were “Better”, “Worse”, “No Change”,
“Don't Know”, and “No Response". What kind of vari-
able is the response?

answer: the distance

step-by-step explanation:

to calculate the distance d of a line segment with endpoints (x1, y1) and (x2, y2) use the formula d (x2 x1)2 (y2 y1)2. to calculate the midpoint of a line segment with endpoints (x1, y1) and (x2, y2) use the formula

8+10

step-by-step explanation:

you multiply 4 by 2 and 5 by 2

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