Answer:
Step-by-step explanation:
Combine like terms
the answer is d
-3+6k+11k-10-9y+5x-y-13x
-13+17k-10y-8x
-5x+6x-9x+5xy
-8x+5xy
y = 15x + 30
The $30 rental fee is a flat fee.
The $15 per day can be noted as 15x.
I believe the answer is 4.