It’s ok I will try to figure out an answer
So basically, for this you would be combining like-terms and simplifying. This will give you -3a^8+65a^5
You can isolate r to one side of the equation by dividing by adding three, dividing by s, multiplying by a and you get:
r=a(3+k)/s
After spending 3/7, she is left with;
4/7
Now, 4/7 is equivalent to 72
7/7 is equivalent to?

= 126 dollars
Answer:
Ruled,Trade expeditions,and trade center
Step-by-step explanation:
I hope it helps