5.1% < 0.51 been working on this all day i really need

The doghouse shown has a floor, but no windows. find the total surface area of the doghouse, including the door.

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

My hour hand points between the 8 and the 9 in 35 minutes it will be the next hour. what time is it ?