Nolan has x dimes and y nickels. He has no less than 15 coins worth no more than $1 combined. Solve this system of inequalities graphically and determine one possible solution.

What is the standard form of -5x^2+2x^4-11+x^3+3x

The tuition costs, c, for a local community college are modeled by c(h) = 250 + 200h, where h represents the number of credit hours taken. the local state university has tuition costs, s, modeled by the function s(h) = 300 + 180h. how many credit hours will a student have to take for the two tuition costs to be equal? round the answer to the nearest tenth of an hour.

What expression is equivalent to 42x-56y