Simplify the expression.
(5-5i)-(-6-3i)

Every time you drive you will experience a combination of driving conditions and environments.

If 10 men take 18 days to mow 60 acres of grass, how long will 15 men take to mow 80 acres?

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