For this case we have that the total of the balls is 86. We know there are 8 footballs then:
Basketball: Two more than twice the number of footballs are basketballs, that is:

There are 18 Basketballs.
Baseballs: Four less than 5 times the number of footballs are baseballs, that is:

There are 36 Baseballs.
Softballs: Six more than half of baseballs are softballs. That is to say:

There are 24 Softballs
If we add we must get 86.

ANswer:
There are 8 Footballs
There are 18 Basketballs.
There are 36 Baseballs.
There are 24 Softballs
With pi, repeating decimals, etc. Hope this helped!
By setting up a system of equations we can easily solve this problem. Let's denote Jane's working hours with x and Jack's working hours with y. Since they don't want to work more than 65 hours, the first equation is x+y=65. The second equation is 14x+7y=770. By solving this system of equation , we find that y=20 hours, which is Jack's maximum working hours.
Answer:
b
Step-by-step explanation: