What is (x+5)(x-3) in standard form

Which measure is equivalent to 110 ml? 0.0110 l 0.110 l 1.10 l 11,000 l

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

Me. i can't figure out this question. give an explanation too. .