Answer:
27 chocolate cake and 12 pecan cake
Step-by-step explanation:
Y=3x-9
0=3x-9
-3x=-9
x=3
X-int = 3
I could be wrong but this is what I think.
D=RT
D=39 (3)
D=117
2m = 25/2
m= 25/2 divided by 2
m= 25/4
3m= 25/4 x 3
3m= 75/4
so she does 3 miles in 18 3/4 hours