What is the domain and range of y=-x^2+36

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

Mr.walker is looking at the fundraiser totals for the last five years , how does the mean of the totals compare to the median?

Solve for x where 0 equation: cot^2x+2cotx+1=0