Can anyone help me with this? It was a take home quiz.

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

Which statement most accurately describe why the division property of exponents does not apply to the expression (-8)^2/(-3)^4

Consider the graph of the exponential function y=3(2)×