Which list of ordered pairs represents solutions to x + y = 2 ?
(-4, 6), (0, 2), (4,2)
(-4,-6), (0, 2), (4,2)
(-4, 6), (0, 2), (4, -2)

A. 90 degrees b. 45 degrees c. 30 degrees d. 120 degrees

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 difference of three and the reciprocal of a number is equal to the quotient of 20 and the number. find the number.