Answer:
They used 6 vans and 3 buses
Step-by-step explanation:
x + y= 9
13x + 40y= 198
x= 9 - y
13(9 - y) + 40y= 198
117 - 13y + 40y= 198
27y= 81
y= 3
9-3= 6
The answer of the question which you asked above is
36^6x-6^5x=1
The answer i believe is C
Answer:
B
Step-by-step explanation:
A number increased by 7 means, 7 was added to the number and the result is 15
