Which expressions are equivalent to 6x-18 2(3x-9)

6(x-18)

X+x+x-10-8

3(2x-6)

X+5x-18

If the ratio of sum of the first m and n terms of an ap is m2 : n2 , show that the ratio of its mth and nth terms is (2m − 1) : (2n − 1).

Which of the following best describes the graph below? + + 2 + 3 + 4 1 o a. it is not a function. o b. it is a one-to-one function. o c. it is a many-to-one function. o d. it is a function, but it is not one-to-one.

Solve the equation. 2x - 8(x+1)= 6(2x - 3)