It takes matt 3 minutes to read one page in a book. if he continues to read at the same pace, he can read 15 similar pages in 5 20 45 minutes. if the book has 300 pages, it will take him 100 900 1,200 minutes to read it.

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