Simplify:

-15x^9/10x^17

45% of the trees in a park are apple trees. there are 27 apple trees in the park. how many trees are in the park in all?

What will the graph look like for a system of equations that has no solution? a. the lines will be perpendicular. b. the lines will cross at one point. c. both equations will form the same line. d. the lines will be parallel.

Піf x = y and y= z, which statement must be true? оа. -x = -2 b. x= z ос. —x = 2 od. 2= x