How many days are there in 9weeks

Somone me i want to know what 18 hours out of 24 hours in a fraction

Solve each quadratic equation by factoring and using the zero product property. x^2 - 8x + 30 = 3x

Acoffee shop orders at most $3,500 worth of coffee and tea. the shop needs to make a profit of at least $1,900 on the order. the possible combinations of coffee and tea for this order are given by this system of inequalities, where c = pounds of coffee and t = pounds of tea: 6c + 13t ≤ 3,500 3.50c + 4t ≥ 1,900 which graph's shaded region represents the possible combinations of coffee and tea for this order?