The shaded region in the graph is the solution set for which inequality? A) 4x + 5y ≤ 20 B) 4x + 5y ≤ -20 C) 5x + 4y ≤ 20 D) 5x + 4y ≤ -20

Which expression is equivalent to (3^2)^-2 a.-81 b.-12 c.1/81 d.1/12

Luke started a weight-loss program. the first week, he lost x pounds. the second week, he lost pounds less than times the pounds he lost the first week. the third week, he lost 1 pound more than of the pounds he lost the first week. liam started a weight-loss program when luke did. the first week, he lost 1 pound less than times the pounds luke lost the first week. the second week, he lost 4 pounds less than times the pounds luke lost the first week. the third week, he lost pound more than times the pounds luke lost the first week.

Solve 2 - 3 cos x = 5 + 3 cos x for 0° ≤ x ≤ 180° a. 150° b. 30° c. 60° d. 120°