#HP Help. Please Which graph represents the solution set of this inequality? \qquad12b - 15 > 2112b−15>2112, b, minus, 15, is greater than, 21 Choose 1 Choose 1 (Choice A) A (Choice B) B (Choice C) C (Choice D) D

Line gh passes through points (2, 5) and (6, 9). which equation represents line gh? y = x + 3 y = x – 3 y = 3x + 3 y = 3x – 3

The function a represents the cost of manufacturing product a, in hundreds of dollars, and the function b represents the cost of manufacturing product b, in hundreds of dollars. a(t) = 5t + 2 b(t) = 7t - 2t +4 find the expression that describes the total cost of manufacturing both products, a(t) + b(t). a. 7t^2 - 7t + 2 b. 7t^2 + 3 +6 c. 7t^2 + 7t - 6 d. 7t^2 - 3t + 6

Can someone check if i did this correct. it’s number 4 if you’re wondering.