Which of the following sets is closed under division?
natural numbers
non-zero integers
irrational numbers
non-zero rational numbers

In triangle opq right angled at p op=7cm,oq-pq=1 determine the values of sinq and cosq

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?

Explain how to convert measurements in the metric system