I will be so apricciated! ty!

What is the missing reason in step 5? linear pair postulategivendefinition of complementary anglescongruent complements theorem

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?

The perimeter of a quarter circle is 14.28 miles. what is the quarter circle's radius?