Agym membership is advertised to cost $630 per year. what is the cost per month of the gym membership?

630 / 12 since there are 12 months in a year. So 630 divided by 12 is $52.50. Hope I helped!

-9

step-by-step explanation:

let x and 400 - x be the two numbers.  

==> 0.80x + 0.85(400 - x) = 400 - 68 from the statement of the problem.  

< ==> 0.80x + 0.85(400 - x) = 400 - 68  

==> 340 - 0.05x = 332  

< ==> -0.05x = -8 ==> x = 160, the first number ==> 400 - x = 240, the second number.