(1 point) The expression (x−1y4z3(xy)1z−6)−4 equals xryszt
where r, the exponent of x, is:
and s, the exponent of y, is:
and finally t, the exponent of z, is:
[NOTE: Your answers cannot be algebraic expressions.]

answer: .75 km

step-by-step explanation:

the answer i believe is 27 units.

step-by-step explanation:

the diagram shows you   triangle def with de=4, df=9 and de≠df≠ef.

the sum of the lengths of two triangles' sides are always greater than the length of the third side:

substitute sides lengths:

then 5< ef< 13 (option 3 is true).

def is a scalene triangle with all sides of different lengths (option 5 is true, option 2 is false).

answer: correct choices are 1, 3 and 5