2 questions:

3x/25=9/75

and

5x-1/12=x+5/5

NEED HELP NOW!!!

Which of the following is correct interpretation of the expression -4+13

If the sales price of a dvd is $20 and the markup is 34%, what is the cost of the dvd?

The population of a small rural town in the year 2006 was 2,459. the population can be modeled by the function below, where f(x residents and t is the number of years elapsed since 2006. f(t) = 2,459(0.92)