The graph of the step function g(x) = –⌊x⌋ + 3 is shown. what is the domain of g(x)?

Aman steps out of a plane at a height of 4,000m above the ground falls 2,000m very quickly and then opens his parachute and slowly falls the remaining 2000m to the ground what height above the ground would be the best choice for a reference point

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

Last one and the bottom answer choice is y=(x-4)^2+1 you guys!