Given data:
The first equation is 3j +14=-5z.
The second equation is -10j=5z .
Add both the equations.

Substitute 2 for j in the first equation.

Thus, the value of j is 2 and z is -4.
Answer:
15 hours
Step-by-step explanation:
To find the gallons per hour: 230/5=46, this means that it take 46 gallons per hour, you add 46 to 230, and you do that 15 times and you'll get 920. The pool will be filled at 11:00 pm.
6/8 of the cookies where shaped like circles and 2/8 of the cookies where shaped like squares *sorry if I’m wrong*

We know that
and 
Substitute in the value. 
Use a calculator to multiply. 
Answer:2
Step-by-step explanation: two ones equal one two