What is the 52nd term of 5,9,13

In trapezoid efgh, m∠hef=(4x2+16)∘ and m∠gfe=(5x2+12)∘. find the value of x so that efgh is isosceles.

Line l passes through points (0,4) and (3,6) what is the slope of a line that is parallel to line l -2/3 -3/2 2/3 3/2

Which equation can be used to measure the density of water in a spherical water tank? let w represent the number of water particles within the region.