PLEASE HELP TIME LIMIT The yellow side is the front. Assuming that there are no hidden blocks, what are the top, front, and right orthographic views of the object? A B C D

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

Is this a polynomial function? i need to know asap

What are the solutions of the system? solve by graphing. y = -x^2 -6x - 7 y = 2