Answer:
Step-by-step explanation:(4+7)-(1)
Answ
x and y coordinates
Step-by-step explanation:
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:
ok
Step-by-step explanation:
Answer:
23
Step-by-step explanation:
Because 23•23=529 so the square root of 529 is 23.