Answer:
156 buttons in each container
Step-by-step explanation:

To solve for cos use
adjacent over hypotenuse
divide the lengths of the sides
adj. / hyp.
Answer:
18-6=2+y
Step-by-step explanation:
18-6=2+y
Subtract what has already been loaded from total amount allowed:
23500 - 9700 = 13,800
Divide the amount left by the weight of each crate:
13,800 / 70 = 197.14
They can load 197 crates.