Stacy hits the jackpot one day at the gumball machine. She puts in a quarter and gets 444 gumballs rather than 111. The radius of each gumball is 666 mm.
What is the total volume of all 444 gumballs?
Either enter an exact answer in terms of \piπpi or use 3.143.143, point, 14 for \piπpi.

Find dy/dx using implicit differentiation ln(20+e^xy)=y

Solve each quadratic equation by factoring and using the zero product property. 10x + 6 = -2x^2 -2

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?