Henry is mixing concrete. To make concrete he needs to mix cement, sand and gravel in the ratio 3 : 2 : 7 by weight. Henry needs to make 180kg of concrete. He has 46kg of cement, 29kg of sand and 105kg of gravel. Which ingredient is Henry short of?

If i purchase a product for $79.99 and two accessories for 9.99 and 7.00 how much will i owe after taxes applies 8.75%

Apassenger train and a freight train leave san jose at 3pm, traveling in the same direction. the passenger train is going three times as fast as the freight train. at 6pm they are 240 miles apart. how fast is each travelling? explain your answer and show your

Sasha delivers newspapers to subscribers that live within a 4 block radius of her house. sasha's house is located at point (0, -1). points a, b, c, d, and e represent the houses of some of the subscribers to the newspaper. to which houses does sasha deliver newspapers?