Which expressions are equal to 8 × 105? Select all that apply.

The line y = x + passes through (−3, 7) and is parallel to y = 4x − 1.

The perimeter of a stage is 116 feet. it is 17 feet wide. how long is 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