1.64 points as a mixed number in simplest form

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

Polynomial that can be factored as (3x-4)(3x+4)

Explain how you can use the associative property to evaluate (7x50)x4.