Answer:
b<-21
Step-by-step explanation:
1/3b+1<-6
1/3b<-7
*3 *3
b<-21
B) p=9t
he gets paid $9/hr, and his pay depends how many hours he works.
For this case we have the following subtraction:

We can rewrite the subtraction in an easier way.
We have then:

Then, by doing associative property we have:

Answer:
The value of the subtraction is given by:

Interest from first account is :

Interest form second account is :

So, total interest is :

Therefore, total interest is $77.877 .