Samantha bought two pencils for ten dollars, one eraser that is fifteen dollars, and one marker that costs twenty dollars. how much does all of the products cost together?

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?

What is the product? a-3/15a × 5/a-3

I’m still confused on how to work the percentages