Make the " a " the subject for the formula k = a - b + c

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

Which expression can be used to determine the slope of the line that passes through the points -6, three and one, -9

1yd 1 ft = 1 1/12 1 1/3 1 1/2 1 1/6