The cost price of a car is 450 naira and the selling price is 504 naira what is the percentage again

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

#1-20 state whether the angles are alternate interior, alternate exterior, vertical, or corresponding angles.

10 points? me . its important ‼️‼️