Answer:
-9x^9y^5
Step-by-step explanation:
Do the multiply first:
-16x^9y^5+7x^9y^5
=x^9y^5(-16+7)
=-9x^9y^5
45 i guessStep-by-step explanation:
Answer:
9
Step-by-step explanation:
3/729= 9
729=9^3
=3/9^3= 9
Hope this helps! Please give brainiest!
The y-intercept is the flat fee and the slope is the per-person cost.