Help we are learning about inequalities

This is the number of parts out of 100, the numerator of a fraction where the denominator is 100. submit

Write an equation in point-slope form for the line through the given point that has the given slope (-2,-7); m=-3/2

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