adding and subtract polynomials me fast


1. (9m + 6) + (–5m – 6) (1 point)a.4m + 12 b.14m + 12 c.14m – 12 d.4m 2. (3r2 + 7r + 1) + (4r2 – 8r – 2) (1 point) a.7r2 + 15r – 1 b.7r2 – r – 1 c.7r2 – 15r – 3 – d. r2 – r – 1 3. (6h + 1) – (9h + 4) (1 point) a. –3h – 3 b.15h – 5 c.–3h + 3 d.–3h + 5 4. (m2 – m – 4) + (m – 5) (1 point) a. m2 – 2m + 9 b. m2 + 2m – 9 c. m2 – 2m – 9 d. m2 – 9 5. (4x + 4) + (3x + 2 + 1) (1 point) a.7x + 3 b. x + 7 c.7x + 7 d.8x + 6

Stefano accidentally dropped his sunglasses off the edge of a canyon as he was looking down. the height, h(t), in meters (as it relates to sea level), of the sunglasses after t seconds, is shown in the table. during its descent, the pair of sunglasses passed by a climber in the canyon 6 seconds after stefano dropped them. to the nearest meter, what is difference in elevation between stefano and the climber? 166 meters 176 meters 230 meters 240 meters its b.176 i took the test 166 is wrong and 176 is correct

Will give brainliest immeadeately true or false: the origin woud be included in the solution set for the inequality: y< 2x-5

The graph of a function f(x)=(x+2)(x-4). which describes all of the values for which the graph is negative and increasing? all real values of x where x< -2 all real values of x where -2