A special truck cleans the surface of the ice rink shown. The figure is composed of a square and two semicircles. If the truck cleans the entire surface, how many square feet of ice will the truck clean? Use 3.14 for π . Round your answer to the nearest tenth.

Consider the reaction 2x2y2+z2⇌2x2y2z which has a rate law of rate= k[x2y2][z2] select a possible mechanism for the reaction.

Solve the equation - 2(m -30) = -6m a-15 b-13 c-8 d8

Expresa commuter train leaves downtown sation and travels at a average speed of 55 miles per hour towards the north side sation, which is 50miles away. thirty minutes later, express commuter train #7 leaves north side and travels at a average speed of 35miles per hour towards downtown sation. at the moment the two trains pass each other, how far(in miles) is train #12 from the downtown sation and how long(in minutes) has the #12 train been traveling