Expand and then simplify (a) p2 + 3p(p + 2q +5r)​

How do i do this? i don’t understand

School has 204 sixth grade students. if the sixth grade is 30% of the total school, how many students are in the middle school?

Which of the following describes the graph of y--4x-36 compared to the parent square root function? stretched by a factor of 2, reflected over the x-axis, and translated 9 units right stretched by a factor of 2, reflected over the x-axis, and translated 9 units left stretched by a factor of 2, reflected over the y-axis, and translated 9 units right stretched by a factor of 2, reflected over the y-axis, and translated 9 units left save and exit next submit