IF ΔABC ~ ΔXYZ, which proportion is not necessarily true? Options
AB/BC = XY/YZ
AB/XZ = AC/YZ
AC/XZ = BC/YZ
AB/AC = XY/XZ

Phillip had some bricks. he stacked them in 6 equal piles. which expression shows the number of bricks phillip put in each pile? let the variable m stand for the unknown number of bricks. m + 6 m÷6    m−6    6m

The measure of one angle of an octagon is two times smaller that of the other seven angles. what is the measure of each angle?

Type the correct answer in the box. consider the system of linear equations below. rewrite one of the two equations above in the form ax + by = c, where a, b, and c are constants, so that the sum of the new equation and the unchanged equation from the original system results in an equation in one variable.