PLS HELP ME I NEED HELP I HAVE A MATH DBA IN A HOUR 1. What is the GCF of: 9a^4 b^4 - 27a^3b^3

2. Factor using the difference of two square methods: x^2 - 36

3. Factor the trinomial: x^2 + 7x + 10

At a sand and gravel plant, sand is falling off a conveyor and onto a conical pile at a rate of 16 cubic feet per minute. the diameter of the base of the cone is approximately three times the altitude. at what rate is the height of the pile changing when the pile is 12 feet high? (hint: the formula for the volume of a cone is v = 1 3 πr2h.)

What is the range of the data below? .8090100

Plot the points (0,6), (3,15.8), and (9.5,0) using the graphing tool, and find the function