In circle T, minor arc AB= (3x+9)° and minor arc CD= (11x-71)°. what is the measure of minor arc AB?

Simonne used the following steps to simplify the given expression. 12 - 3(-2x + 4) step 1: 12 + (–3)·(–2x) + (–3)·(4) step 2: 12 + 6x + (–12) step 3: 12 + (–12) + 6x step 4: 0 + 6x step 5: 6x what property of real numbers was used to transition from step 3 to step 4? a. identity property of addition b. inverse property of addition c. associative property of addition d. commutative property of addition

What term best describes a line and a point that lie in the same plane? a. congruent b. coplanar c. collinear d. equal

What is the difference between the equations of a vertical and a horizontal line?