If a = { x ∈ r | | x | ≤ 1 } and the relation r is defined as a, b ∈ r if and only if a2 ≤ | b | and b2 ≤ | a | then which of the following properties is true?
a. antisymmetric
b. transitive
c. reflexive

4444444444444 i think

c. 1,233 miles

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

step-by-step explanation:

for exempl this   system of equations   y = x - 3

                                                                y = 2x - 5

look   the line : y = x -3     ( red)

                            the line : y = 2x -5 ( bleus)