Simplify the algebraic expression 7x^2 + 6x - 9x - 6x^2 + 15

Look at the following graph of the given equation. determine whether the equation is a function. explain why or why not.

The midpoints of the sides of the large square are joined to form a smaller square. what is the area of the smaller square

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?