Doing a test need help David has xx nickels and yy dimes. He has at least 24 coins worth at most $1.80 combined. Solve this system of inequalities graphically and determine one possible solution.

The weight v of an object on venus varies directly with its weight e on earth. a person weighing 120 lb on earth would weigh 106 lb on venus. how much would a person weighing 150 lb on earth weigh on venus?

Peter applied to an accounting firm and a consulting firm. he knows that 30% of similarly qualified applicants receive job offers from the accounting firm, while only 20% of similarly qualified applicants receive job offers from the consulting firm. assume that receiving an offer from one firm is independent of receiving an offer from the other. what is the probability that both firms offer peter a job?

Solve each quadratic equation by factoring and using the zero product property. x^2 + 18x = 9x