Jack mows the lawn in 3 hours. jane mows the same yard in 4 hours. if they worked together how much time would it take them to mow the yard?

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

Solve this and show you’re work step by step ! -5 3/4+3h< 9 1/4 -

If there are 3.281 feet in 1 meter, how many inches are in one centimeter