If f(x)=3x squared -2 what is f(-4)

One-third of the people from country a claim that they are from country b, and the rest admit they are from country a. one-fourth of the people from country claim that they are from country a, and the rest admit they are from country b. in a combined census of the two countries, one-half of the total claimed to be from a. what is the ratio of the populations of country a to that of country b.

The vet charges $45 for an office visit and $10 for each vaccination your dog needs. write an eaquation

If you could answer these your a life saver